{"id":"F2019L00026","name":"Vehicle Standard (Australian Design Rule 4/06 – Seatbelts) 2018","slug":"vehicle-standard-australian-design-rule-4-06-seatbelts-2018","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":98675,"registerId":"commonwealth-F2019L00026-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Model A","sectionType":"part","heading":"Model A","content":"Annex 2\n\nArrangements of the approval marks\n\n1. Arrangements of the vehicle approval marks concerning the installation of \nsafety-belts\n\n# Model A\n\n# (See paragraph 5.2.4. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved pursuant to Regulation No. 16R under approval number 062439 ](image.013.png)\n\na = 8 mm min.\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to safety-belts, been approved in the Netherlands (E 4) pursuant to Regulation No. 16\\. The approval number indicates that the approval was granted according to the requirements of Regulation No. 16 as amended by the 06 series of amendments.\n\n# Model B\n\n# (See paragraph 5.2.5. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved pursuant to Regulation No. 16 under approval number 0062439 and pursuant to Regulation No. 52 under approval number 011628.](image.014.png)\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved in the Netherlands (E 4) pursuant to Regulations Nos. 16 and 52[\\[18\\]](#_ftn21)F The approval numbers indicate that, at the dates when the respective approvals were given, Regulation No. 16 included the 06 series of amendments and Regulation No. 52 the 01 series of amendments.\n\n2. Arrangements of the safety-belt approval marks (see paragraph 5.3.5. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439.](image.015.png)\n\na = 8 mm min.\n\nThe belt bearing the above approval mark is a three-point belt (\"A\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E 4) under the number 062439, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062489](image.016.png)\n\nThe belt bearing the above approval mark is a lap belt (\"B\"), fitted with a retractor, type 4, with multiple sensitivity (m) and approved in the Netherlands (E 4) under the number 062489, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\nNote: The approval number and additional symbol(s) shall be placed close to the circle and either above or below the \"E\" or to left or right of that letter. The digits of the approval number shall be on the same side of the \"E\" and orientated in the same direction. The additional symbol(s) shall be diametrically opposite the approval number. The use of roman numerals as approval numbers should be avoided so as to prevent any confusion with other symbols.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 0622439](image.017.png)\n\nThe belt bearing the above approval mark is a special type belt (\"S\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E 4) under the number 0622439, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 0624391.](image.018.png)\n\nThe belt bearing the above approval mark is part of a restraint system (\"Z\"), it is a special type belt (\"S\") fitted with an energy absorber (\"e\"). It has been approved in the Netherlands (E 4) under the number 0624391, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n \n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439](image.019.png)\n\nThe belt bearing this type approval mark is a three-point belt (\"A\") with a multiple-sensitivity (\"m\") type 4N (\"r4N\") retractor, in respect of which type approval was granted in the Netherlands (\"E 4\") under number 062439, the Regulation already incorporating the 06 series of amendments at the time of approval. This belt shall not be fitted to vehicles of category M1.\n\n \n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439. Has to be fitted to a vehicle equipped with an airbag in the given seating position](image.020.png)\n\nThe safety-belt bearing this type approval mark is a three-point belt (\"A\") fitted with an energy absorber (\"e\"), approved as meeting the specific requirements of paragraph 6.4.1.3.3. or 6.4.1.3.4. of this Regulation, and with a multiple-sensitivity (\"m\") type 4 (\"r4\") retractor, in respect of which type approval was granted in the Netherlands (\"E 4\") under the approval number 062439. The first two digits indicate that the Regulation already incorporated the 06 series of amendments at the time of the approval. This safety-belt has to be fitted to a vehicle equipped with an airbag in the given seating position.","sortOrder":0},{"sectionNumber":"(See paragraph 5.2.4. of this Regulation","sectionType":"part","heading":"(See paragraph 5.2.4. of this Regulation)","content":"# (See paragraph 5.2.4. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved pursuant to Regulation No. 16R under approval number 062439 ](image.013.png)\n\na = 8 mm min.\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to safety-belts, been approved in the Netherlands (E 4) pursuant to Regulation No. 16\\. The approval number indicates that the approval was granted according to the requirements of Regulation No. 16 as amended by the 06 series of amendments.","sortOrder":1},{"sectionNumber":"Model B","sectionType":"part","heading":"Model B","content":"Annex 2\n\nArrangements of the approval marks\n\n1. Arrangements of the vehicle approval marks concerning the installation of \nsafety-belts\n\n# Model A\n\n# (See paragraph 5.2.4. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved pursuant to Regulation No. 16R under approval number 062439 ](image.013.png)\n\na = 8 mm min.\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has, with regard to safety-belts, been approved in the Netherlands (E 4) pursuant to Regulation No. 16\\. The approval number indicates that the approval was granted according to the requirements of Regulation No. 16 as amended by the 06 series of amendments.\n\n# Model B\n\n# (See paragraph 5.2.5. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved pursuant to Regulation No. 16 under approval number 0062439 and pursuant to Regulation No. 52 under approval number 011628.](image.014.png)\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved in the Netherlands (E 4) pursuant to Regulations Nos. 16 and 52[\\[18\\]](#_ftn21)F The approval numbers indicate that, at the dates when the respective approvals were given, Regulation No. 16 included the 06 series of amendments and Regulation No. 52 the 01 series of amendments.\n\n2. Arrangements of the safety-belt approval marks (see paragraph 5.3.5. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439.](image.015.png)\n\na = 8 mm min.\n\nThe belt bearing the above approval mark is a three-point belt (\"A\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E 4) under the number 062439, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062489](image.016.png)\n\nThe belt bearing the above approval mark is a lap belt (\"B\"), fitted with a retractor, type 4, with multiple sensitivity (m) and approved in the Netherlands (E 4) under the number 062489, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\nNote: The approval number and additional symbol(s) shall be placed close to the circle and either above or below the \"E\" or to left or right of that letter. The digits of the approval number shall be on the same side of the \"E\" and orientated in the same direction. The additional symbol(s) shall be diametrically opposite the approval number. The use of roman numerals as approval numbers should be avoided so as to prevent any confusion with other symbols.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 0622439](image.017.png)\n\nThe belt bearing the above approval mark is a special type belt (\"S\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E 4) under the number 0622439, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 0624391.](image.018.png)\n\nThe belt bearing the above approval mark is part of a restraint system (\"Z\"), it is a special type belt (\"S\") fitted with an energy absorber (\"e\"). It has been approved in the Netherlands (E 4) under the number 0624391, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n \n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439](image.019.png)\n\nThe belt bearing this type approval mark is a three-point belt (\"A\") with a multiple-sensitivity (\"m\") type 4N (\"r4N\") retractor, in respect of which type approval was granted in the Netherlands (\"E 4\") under number 062439, the Regulation already incorporating the 06 series of amendments at the time of approval. This belt shall not be fitted to vehicles of category M1.\n\n \n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439. Has to be fitted to a vehicle equipped with an airbag in the given seating position](image.020.png)\n\nThe safety-belt bearing this type approval mark is a three-point belt (\"A\") fitted with an energy absorber (\"e\"), approved as meeting the specific requirements of paragraph 6.4.1.3.3. or 6.4.1.3.4. of this Regulation, and with a multiple-sensitivity (\"m\") type 4 (\"r4\") retractor, in respect of which type approval was granted in the Netherlands (\"E 4\") under the approval number 062439. The first two digits indicate that the Regulation already incorporated the 06 series of amendments at the time of the approval. This safety-belt has to be fitted to a vehicle equipped with an airbag in the given seating position.","sortOrder":2},{"sectionNumber":"(See paragraph 5.2.5. of this Regulation","sectionType":"part","heading":"(See paragraph 5.2.5. of this Regulation)","content":"# (See paragraph 5.2.5. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved pursuant to Regulation No. 16 under approval number 0062439 and pursuant to Regulation No. 52 under approval number 011628.](image.014.png)\n\nThe above approval mark affixed to a vehicle shows that the vehicle type concerned has been approved in the Netherlands (E 4) pursuant to Regulations Nos. 16 and 52[\\[18\\]](#_ftn21)F The approval numbers indicate that, at the dates when the respective approvals were given, Regulation No. 16 included the 06 series of amendments and Regulation No. 52 the 01 series of amendments.\n\n2. Arrangements of the safety-belt approval marks (see paragraph 5.3.5. of this Regulation)\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439.](image.015.png)\n\na = 8 mm min.\n\nThe belt bearing the above approval mark is a three-point belt (\"A\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E 4) under the number 062439, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062489](image.016.png)\n\nThe belt bearing the above approval mark is a lap belt (\"B\"), fitted with a retractor, type 4, with multiple sensitivity (m) and approved in the Netherlands (E 4) under the number 062489, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\nNote: The approval number and additional symbol(s) shall be placed close to the circle and either above or below the \"E\" or to left or right of that letter. The digits of the approval number shall be on the same side of the \"E\" and orientated in the same direction. The additional symbol(s) shall be diametrically opposite the approval number. The use of roman numerals as approval numbers should be avoided so as to prevent any confusion with other symbols.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 0622439](image.017.png)\n\nThe belt bearing the above approval mark is a special type belt (\"S\"), fitted with an energy absorber (\"e\") and approved in the Netherlands (E 4) under the number 0622439, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 0624391.](image.018.png)\n\nThe belt bearing the above approval mark is part of a restraint system (\"Z\"), it is a special type belt (\"S\") fitted with an energy absorber (\"e\"). It has been approved in the Netherlands (E 4) under the number 0624391, the Regulation already incorporating the 06 series of amendments at the time of approval.\n\n \n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439](image.019.png)\n\nThe belt bearing this type approval mark is a three-point belt (\"A\") with a multiple-sensitivity (\"m\") type 4N (\"r4N\") retractor, in respect of which type approval was granted in the Netherlands (\"E 4\") under number 062439, the Regulation already incorporating the 06 series of amendments at the time of approval. This belt shall not be fitted to vehicles of category M1.\n\n \n\n![Example of an approval mark that shows that the vehicle type concerned has been approved in the Netherlands under approval number 062439. Has to be fitted to a vehicle equipped with an airbag in the given seating position](image.020.png)\n\nThe safety-belt bearing this type approval mark is a three-point belt (\"A\") fitted with an energy absorber (\"e\"), approved as meeting the specific requirements of paragraph 6.4.1.3.3. or 6.4.1.3.4. of this Regulation, and with a multiple-sensitivity (\"m\") type 4 (\"r4\") retractor, in respect of which type approval was granted in the Netherlands (\"E 4\") under the approval number 062439. The first two digits indicate that the Regulation already incorporated the 06 series of amendments at the time of the approval. This safety-belt has to be fitted to a vehicle equipped with an airbag in the given seating position.","sortOrder":3},{"sectionNumber":"(dimensions in millimetres)","sectionType":"part","heading":"(dimensions in millimetres)","content":"# (dimensions in millimetres)\n\n![](image.023.jpeg)","sortOrder":4},{"sectionNumber":"Table 1","sectionType":"part","heading":"Table 1","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":5},{"sectionNumber":"Characteristics of the absorbing materia","sectionType":"part","heading":"Characteristics of the absorbing material","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":6},{"sectionNumber":"(ASTM Method D 735 unless otherwise stat","sectionType":"part","heading":"(ASTM Method D 735 unless otherwise stated)","content":"# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```","sortOrder":7},{"sectionNumber":"Figure 1","sectionType":"part","heading":"Figure 1","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":8},{"sectionNumber":"Trolley, seat, anchorage","sectionType":"part","heading":"Trolley, seat, anchorage","content":"# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)","sortOrder":9},{"sectionNumber":"Figure 2","sectionType":"part","heading":"Figure 2","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":10},{"sectionNumber":"Stopping device","sectionType":"part","heading":"Stopping device","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":11},{"sectionNumber":"(Assembled)","sectionType":"part","heading":"(Assembled)","content":"# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)","sortOrder":12},{"sectionNumber":"Figure 3","sectionType":"part","heading":"Figure 3","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":13},{"sectionNumber":"(Polyurethane tube)","sectionType":"part","heading":"(Polyurethane tube)","content":"# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)","sortOrder":15},{"sectionNumber":"Figure 4","sectionType":"part","heading":"Figure 4","content":"Annex 6\n\nDescription of trolley, seat, anchorages and stopping device\n\n1. Trolley\n\nFor tests on safety-belts the trolley, carrying the seat only, shall have a mass of 400 ± 20 kg. For tests on restraint systems the trolley with the attached vehicle structure shall have a mass of 800 kg. However, if necessary, the total mass of the trolley and vehicle structure may be increased by increments of 200 kg. In no case shall the total mass differ from the nominal value by more than ±40 kg.\n\n2. Seat\n\nExcept in the case of tests on restraint systems, the seat shall be of rigid construction and present a smooth surface. The particulars given in Figure 1 of this annex shall be respected, care being taken that no metal part can come into contact with the belt.\n\n3. Anchorages\n\n3.1. In the case of a belt equipped with a belt adjustment device for height as defined in paragraph 2.14.6. of this Regulation, this device shall be secured either to a rigid frame, or to a part of the vehicle on which it is normally mounted which shall be securely fixed on the test trolley.\n\n3.2. The general anchorages shall be positioned as shown in Figure 1\\. The marks which correspond to the arrangement of the anchorages show where the ends of the belt are to be connected to the trolley or to the load transducer, as the case may be. The anchorages for normal use are the points A, B and K if the strap length between the upper edge of the buckle and the hole for attachment of the strap support is not more than 250 mm. Otherwise, the points A1 and B1 shall be used. The tolerance on the position of the anchorage points is such that each anchorage point shall be situated at most at 50 mm from corresponding points A, B and K indicated in Figure 1 or A1, B1 and K, as the case may be.\n\n3.3. The structure carrying the anchorages shall be rigid. The upper anchorage shall not be displaced by more than 0.2 mm in the longitudinal direction when a load of 98 daN is applied to it in that direction. The trolley shall be so constructed that no permanent deformation shall occur in the parts bearing the anchorages during the test.\n\n3.4. If a fourth anchorage is necessary to attach the retractor, this anchorage:\n\nShall be located in the vertical longitudinal plane passing through K;\n\nShall enable the retractor to be tilted to the angle prescribed by the manufacturer;\n\nShall be located on the arc of a circle with radius KB1 \\= 790 mm if the length between the upper strap guide and the strap outlet at the retractor is not less than 540 mm or, in all other cases, on the arc of a circle with centre K and radius 350 mm.\n\n4. Stopping device\n\n4.1. The device consists of two identical absorbers mounted in parallel, except in the case of restraint systems when four absorbers shall be used for a nominal mass of 800 kg. If necessary, an additional absorber shall be used for each 200 kg increase of nominal mass. Each absorber comprises:\n\nAn outer casing formed from a steel tube;\n\nA polyurethane energy-absorber tube;\n\nA polished-steel olive-shaped knob penetrating into the absorber; and\n\nA shaft and an impact plate.\n\n4.2. The dimensions of the various parts of this absorber are shown in the diagrams reproduced in Figures 2, 3 and 4.\n\n4.3. The characteristics of the absorbing material are given in Table 1 of this annex. Immediately before each test the tubes shall be conditioned at a temperature between 15 °C and 25 °C for at least 12 hours without being used. During the dynamic testing of safety-belts or restraint systems, the stopping device shall be at the same temperature as during the calibration test, with a tolerance of ±2 °C. The requirements to be met by the stopping device are given in Annex 8 to this Regulation. Any other device giving equivalent results may be used.\n\n# Table 1\n\n# Characteristics of the absorbing material\n\n# (ASTM Method D 735 unless otherwise stated)\n\n| Shore hardness A | 95 ± 2 at 20 ± 5 °C temperature |\n| ----------------------------------------------- | ------------------------------- |\n| Breaking strength | RBoB > 343 daN/cmP2 |\n| Minimum elongation | ABoB > 400 per cent |\n| Module at 100 per cent elongation | > 108 daN/cmP2 |\n| At 300 per cent elongation | > 235 daN/cmP2 |\n| Low-temperature brittleness (ASTM Method D 736) | 5 hours at ‑55 °C |\n| Compression set (Method B) | 22 hours at 70 °C < 45 per cent |\n| Density at 25 °C | between 1.05 and 1.10 |\n\n```html\n

Ageing in air (ASTM Method D 573)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±3

-

Breaking strength:

decrease < 10 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Mass:

decrease < 1 per cent

Immersion in oil (ASTM Method No. 1 Oil)

70 hours at 100 °C

-

Shore-A-hardness:

max variation ±4

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 10 per cent of ABo

-

Volume:

swelling < 5 per cent

Immersion in oil (ASTM Method No. 3 Oil)

70 hours at 100 °C

-

Breaking strength:

decrease < 15 per cent of RBo

-

Elongation:

decrease < 15 per cent of ABo

-

Volume:

swelling < 20 per cent

Immersion in distilled water

1 week at 70 °C

-

Breaking strength:

decrease < 35 per cent of RBo

-

Elongation:

increase < 20 per cent of ABo

\n```\n\n# \nFigure 1\n\n# Trolley, seat, anchorage\n\n![Trolley, seat, anchorage](image.024.png)\n\n# \nFigure 2\n\n# Stopping device\n\n# (Assembled)\n\n![Assembled stopping device](image.025.jpeg)\n\n# Figure 3\n\n# ![](image.026.png)Stopping device\n\n# (Polyurethane tube)\n\n![](image.029.png)![](image.027.png)![](image.028.png)\n\n# Figure 4\n\n# Stopping device\n\n# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":16},{"sectionNumber":"(Olive-shaped knob)","sectionType":"part","heading":"(Olive-shaped knob)","content":"# (Olive-shaped knob)\n\n![Detail of olive-shaped knob used in stopping device](image.030.jpeg)\n\nSurface finish ![Text box to give the minimum requirement of the surface finish](image.031.png) Interference tolerance ±0.1","sortOrder":18},{"sectionNumber":"Table 2","sectionType":"part","heading":"Table 2","content":"# Table 2\n\n| Components of manikin | Mass in kg |\n| --------------------------------------- | ---------- |\n| Head and neck | 4.6 ± 0.3 |\n| Torso and arms | 40.3 ± 1.0 |\n| Thighs | 16.2 ± 0.5 |\n| Lower leg and foot | 9.0 ± 0.5 |\n| Total mass including correction weights | 75.5 ± 1.0 |","sortOrder":20},{"sectionNumber":"Figure 3 Figure 4","sectionType":"part","heading":"Figure 3 Figure 4","content":"# \nFigure 3 Figure 4\n\n![Side and front views respectively of the manikin hip, thighs and lower leg](image.034.png)\n\n \nFigure 5\n\n \n![Manikin principle dimensions, centre of gravity, the location of points at which displacement shall be measured, and shoulder height.\n](image.035.png)","sortOrder":23},{"sectionNumber":"Figure 6","sectionType":"part","heading":"Figure 6","content":"# Figure 6\n\nall dimensions in mm\n\nG = centre of gravity\n\nT = torso reference point (at the rear on the centre line of the manikin)\n\nP = pelvis reference point (at the rear on the centre line of the manikin)\n\nThe displacement measurement at point P shall not contain rotational components around the hip axis and around a vertical axis.","sortOrder":24},{"sectionNumber":"Definition of the different curves","sectionType":"part","heading":"Definition of the different curves","content":"# Definition of the different curves\n\n| Time (ms) | Acceleration (g)Low corridor | Acceleration (g)High corridor |\n| --------- | ---------------------------- | ----------------------------- |\n| 0 | - | 20 |\n| 10 | 0 | - |\n| 10 | 15 | - |\n| 15 | 20 | - |\n| 18 | - | 32 |\n| 25 | 26 | - |\n| 45 | 26 | - |\n| 55 | 20 | - |\n| 60 | 0 | 32 |\n| 80 | - | 0 |\n\n![Corridor for trolley's deceleration or acceleration as a function of time](image.036.png)\n\nThe additional segment (see paragraph 7.7.4.2.) applies only for the acceleration sled.","sortOrder":25},{"sectionNumber":"Type 2 procedure","sectionType":"part","heading":"Type 2 procedure","content":"# Type 2 procedure\n\n![Type 2 procedure ](image.040.png)\n\n![Type 2 procedure](image.041.jpeg)","sortOrder":28},{"sectionNumber":"Type 3 procedure and micro-slip test","sectionType":"part","heading":"Type 3 procedure and micro-slip test","content":"Annex 11\n\nAbrasion and micro-slip test\n\n# Figure 1\n\nType I procedure\n\n![Type I procedure](image.038.jpeg)![Type I procedure](image.039.jpeg)\n\n# \nFigure 2\n\n# Type 2 procedure\n\n![Type 2 procedure ](image.040.png)\n\n![Type 2 procedure](image.041.jpeg)\n\n# \nFigure 3\n\n# Type 3 procedure and micro-slip test\n\n# Total travel: 300 ± 20 mm\n\n![Type 3 procedure and micro-slip test](image.042.png)\n\nThe load of 5 daN on the testing device shall be vertically guided in such a way as to avoid load-swing and twisting of the strap.\n\nThe attaching device shall be fixed to the load of 5 daN in the same manner as in a vehicle.","sortOrder":30},{"sectionNumber":"Total travel: 300 ± 20 mm","sectionType":"part","heading":"Total travel: 300 ± 20 mm","content":"# Total travel: 300 ± 20 mm\n\n![Type 3 procedure and micro-slip test](image.042.png)\n\nThe load of 5 daN on the testing device shall be vertically guided in such a way as to avoid load-swing and twisting of the strap.\n\nThe attaching device shall be fixed to the load of 5 daN in the same manner as in a vehicle.","sortOrder":31},{"sectionNumber":"Specifications of the fixture (all dimen","sectionType":"part","heading":"Specifications of the fixture (all dimensions in mm)","content":"# Specifications of the fixture (all dimensions in mm)\n\n![Specifications of the fixture (all dimensions in mm).](image.043.png)\n\n![](image.044.png)\n\n![Installation of fixture onto vehicle seat and check for compatibility.](image.045.png)","sortOrder":33},{"sectionNumber":"ISOFIX size class","sectionType":"section","heading":"ISOFIX size class","content":"##### ISOFIX size class","sortOrder":34},{"sectionNumber":"ISO/L1","sectionType":"section","heading":"ISO/L1","content":"##### ISO/L1","sortOrder":35},{"sectionNumber":"ISO/L2","sectionType":"section","heading":"ISO/L2","content":"##### ISO/L2","sortOrder":36},{"sectionNumber":"ISO/R1","sectionType":"section","heading":"ISO/R1","content":"##### ISO/R1","sortOrder":37},{"sectionNumber":"C","sectionType":"subdivision","heading":"C","content":"#### C","sortOrder":38},{"sectionNumber":"I - 9 to 18 kg","sectionType":"part","heading":"I - 9 to 18 kg","content":"## I - 9 to 18 kg","sortOrder":39},{"sectionNumber":"A","sectionType":"section","heading":"A","content":"##### A","sortOrder":40},{"sectionNumber":"ISO/F3","sectionType":"section","heading":"ISO/F3","content":"##### ISO/F3","sortOrder":41},{"sectionNumber":"ISO/F3 envelope dimensions for a full-he","sectionType":"part","heading":"ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":43},{"sectionNumber":"(height 720 mm) ISOFIX SIZE CLASS A","sectionType":"part","heading":"(height 720 mm) ISOFIX SIZE CLASS A","content":"# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope","sortOrder":44},{"sectionNumber":"ISO/F2 envelope dimensions for a reduced","sectionType":"part","heading":"ISO/F2 envelope dimensions for a reduced-height forward-facing toddler","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":46},{"sectionNumber":"CRS, (height 650 mm) — ISOFIX SIZE CLASS","sectionType":"part","heading":"CRS, (height 650 mm) — ISOFIX SIZE CLASS B","content":"# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope","sortOrder":47},{"sectionNumber":"ISO/F2X envelope dimensions for a reduce","sectionType":"part","heading":"ISO/F2X envelope dimensions for a reduced-height second version back surface shapeforward-facing toddler CRS, (height 650 mm) — ISOFIX SIZE CLASS B1","content":"# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope","sortOrder":49},{"sectionNumber":"ISO/R3 envelope dimensions for a full-si","sectionType":"part","heading":"ISO/R3 envelope dimensions for a full-size rearward-facing toddlerCRS ISOFIX SIZE CLASS C","content":"# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope","sortOrder":51},{"sectionNumber":"Figure 5","sectionType":"part","heading":"Figure 5","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":52},{"sectionNumber":"ISO/R2 envelope dimensions for a reduced","sectionType":"part","heading":"ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRSISOFIX SIZE CLASS D","content":"# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope","sortOrder":53},{"sectionNumber":"ISO/R1 envelope dimensions for an infant","sectionType":"part","heading":"ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":55},{"sectionNumber":"SIZE CLASS E","sectionType":"part","heading":"SIZE CLASS E","content":"# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope","sortOrder":56},{"sectionNumber":"Figure 7","sectionType":"part","heading":"Figure 7","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":57},{"sectionNumber":"Envelope dimensions for lateral facing p","sectionType":"part","heading":"Envelope dimensions for lateral facing position CRS — ISO/L1- ISOFIX SIZE CLASS F","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":58},{"sectionNumber":"or symmetrically opposite — ISO/L2 — ISO","sectionType":"part","heading":"or symmetrically opposite — ISO/L2 — ISOFIX CLASS G","content":"# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.","sortOrder":59},{"sectionNumber":"Figure 8","sectionType":"part","heading":"Figure 8","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":60},{"sectionNumber":"Side view of the i-Size support leg inst","sectionType":"part","heading":"Side view of the i-Size support leg installation assessment volume for assessing compatibility of the i-Size seating positions with support legs of i-Size child restraint systems","content":"# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.","sortOrder":61},{"sectionNumber":"Figure 9","sectionType":"part","heading":"Figure 9","content":"Annex 17 - Appendix 2\n\nProvisions concerning the installation of forward-facing and rearward-facing ISOFIX child restraint systems of universal and semi-universal categories installed on ISOFIX \nor i-Size positions\n\n1. General\n\n1.1. The test procedure and the requirements in this appendix shall be used to determine the suitability of ISOFIX positions for the installation of ISOFIX child restraint systems of universal and semi-universal categories, as well as to determine the suitability of i-Size seating positions for installing i-Size child restraint systems..\n\n1.2. The tests may be carried out in the vehicle or in a representative part of the vehicle.\n\nFor i-Size seating positions, compliance with the i-Size support leg installation requirements may be assessed by a physical test, computer simulation or representative drawings.\n\n2. Test procedure\n\nISOFIX positions in the vehicle, defined by the vehicle manufacturer shall be checked to ensure that the CRF listed in paragraph 4 of this Appendix can be accommodated. Where the vehicle manufacturer has indicated that the ISOFIX position(s) will accommodate a particular CRF, then it shall be assumed that smaller CRFs of the same orientation may be accommodated.\n\ni-Size seating positions, defined by the vehicle manufacturer, shall be checked to ensure that it is possible to accommodate both the ISO/R2 and the ISO/F2X child restraint fixtures (see paragraph 4 of this Annex) including the i-Size support leg installation assessment volume.\n\nFor both, ISOFIX and i-size position(s), the following procedure shall apply:\n\n2.1. When checking a CRF, on a seat, with or without i-Size support leg installation assessment volume, this seat may be adjusted longitudinally to its rearmost position and in its lowest position.\n\n2.2. Adjust the seat-back angle to the manufacturer’s design position and the head restraint in the lowest and rearmost position. In the absence of any specification an angle of the seat-back corresponding to a torso angle of 25° from the vertical, or the nearest fixed position of the seat-back, shall be used.\n\nWhen checking a CRF, on a rear seat, with or without i-Size support leg installation assessment volume, the vehicle seat located in front of this rear seat may be adjusted longitudinally forward but not further than the mid position between its rearmost and fore most positions. The seat backrest angle may also be adjusted, but not to a more upright angle than corresponding to a torso angle of 15°.\n\n2.3. Place a cotton cloth on the seat-back and cushion.\n\n2.4. Place the CRF, with or without i-Size support leg installation assessment volume, on the ISOFIX or i-Size position.\n\n2.5. Push, towards ISOFIX anchorages system, on the center between the ISOFIX anchorages with a force of 100 N ± 10 N, applied parallel to the lower surface, and remove the force.\n\n2.6. Attach the CRF, with or without i-Size support leg installation assessment volume, to the ISOFIX anchorages system.\n\n2.7. Push vertically downwards on the centre of the upper surface of the fixture with a force of 100 N ± 10 N, and remove the force.\n\n3. Requirements\n\nThe following testing conditions only apply for the CRF(s), with or without i-Size support leg installation assessment volume, when accommodated in the ISOFIX and/or i-Size position. It is not required that the CRF(s), with or without i-Size support leg installation assessment volume, shall be able to move in and out of the ISOFIX and/or i-Size position under these conditions.\n\n3.1. It has to be possible to accommodate the CRF(s), with or without i-Size support leg installation assessment volume, without interference with the vehicle interior. The CRF base shall have a pitch angle of 15°  10°, above the horizontal plane passing through the ISOFIX anchorages system.\n\n3.2. The ISOFIX top tether anchorage, if any, shall remain accessible.\n\n3.3. Should the above requirements not be met with the adjustments indicated in paragraph 2. above, the seats, the seat-backs, the head restraints may be adjusted to alternative positions designated by the manufacturer for normal use following which the above installation procedure shall be repeated and the requirements verified and met. These alternative positions shall be included as information in Table 2 and/or 3 given in Appendix 3 to this annex. Passenger seats in front of i-Size seating positions may also be displaced to a position forward of the normal position of use. In such cases, the vehicle manufacturer shall provide information in the vehicle handbook, that the respective passenger seat shall not be occupied in such positions of displacement.\n\n3.4 Should the above requirements not be fulfilled when some removable interior fittings were present, such fittings may be removed and then requirements of paragraph 3. have to be verified again and fulfilled. In such a case corresponding information shall be included in Table 2 and/or 3 of Appendix 3 of this annex.\n\n4. ISOFIX child restraint system size classes and fixtures\n\nA – ISO/F3: Full-Height Forward Facing toddler CRS\n\nB – ISO/F2: Reduced-Height Forward Facing toddler CRS\n\nB1 – ISO/F2X: Reduced-Height Forward Facing toddler CRS\n\nC – ISO/R3: Full-Size Rearward Facing toddler CRS\n\nD – ISO/R2: Reduced-Size Rearward Facing toddler CRS\n\nE – ISO/R1: Rearward Facing infant CRS\n\nF – ISO/L1: Left Lateral Facing position CRS (carry-cot)\n\nG – ISO/L2: Right Lateral Facing position CRS (carry-cot)\n\nThe fixtures below shall be constructed with a mass between 5 and 15 kg and shall be of suitable durability and stiffness to satisfy the functional requirements.\n\n```html\n

Mass group

ISOFIX size class

Fixture (CRF)

0 – up to 10 kg

F

ISO/L1

G

ISO/L2

E

ISO/R1

0+ - up to 13 kg

C

ISO/R3

D

ISO/R2

E

ISO/R1

I - 9 to 18 kg

A
ISO/F3

B

ISO/F2

B1

ISO/ F2X

C

ISO/R3

D

ISO/R2

\n```\n\n4.1. Full-height forward-facing toddler child restraint systems envelope\n\n# Figure 1\n\n# ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS\n\n# (height 720 mm) ISOFIX SIZE CLASS A\n\n![ISO/F3 envelope dimensions for a full-height forward-facing toddler CRS \n(height 720 mm) ISOFIX SIZE CLASS A\n](image.046.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n4.2. Reduced-height forward-facing toddler child restraint systems envelope\n\n# Figure 2\n\n# ISO/F2 envelope dimensions for a reduced-height forward-facing toddler\n\n# CRS, (height 650 mm) – ISOFIX SIZE CLASS B\n\n![ISO/F2 envelope dimensions for a reduced-height forward-facing toddler \nCRS, (height 650 mm) – ISOFIX SIZE CLASS B\n](image.047.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44\n\n5 Attachment point for the top tether strap.\n\n \n\n4.3. Reduced-height second version back shape forward-facing toddler child restraint systems envelope\n\n# Figure 3\n\n# ISO/F2X envelope dimensions for a reduced-height second version back surface shape \nforward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n\n![ISO/F2X envelope dimensions for a reduced-height second version back surface shape forward-facing toddler CRS, (height 650 mm) – ISOFIX SIZE CLASS B1\n](image.048.png)\n\nKey\n\n1 Limits in the forward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 N/A\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.4. Full-size rearward facing toddler child restraint system envelope\n\n# Figure 4\n\n# ISO/R3 envelope dimensions for a full-size rearward-facing toddler \nCRS ISOFIX SIZE CLASS C\n\n![Figure 4: ISO/R3 envelope dimensions for a full-size rearward-facing toddler\nCRS ISOFIX SIZE CLASS C\n](image.049.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.5. Reduced-size rearward-facing toddler child restraint systems envelope\n\n# Figure 5\n\n# ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS \nISOFIX SIZE CLASS D\n\n![ISO/R2 envelope dimensions for a reduced-size rearward-facing toddler CRS ISOFIX SIZE CLASS D.\n](image.050.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.6. Rearward facing infant child restraint systems envelope\n\n# Figure 6\n\n# ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\n\n# SIZE CLASS E\n\n![ISO/R1 envelope dimensions for an infant-size rearward-facing CRS ISOFIX\nSIZE CLASS E\n](image.051.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in Regulation No. 44.\n\n \n\n4.7. Lateral facing child restraint systems envelope\n\n# Figure 7\n\n# Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F\n\n# or symmetrically opposite – ISO/L2 – ISOFIX CLASS G\n\n![Envelope dimensions for lateral facing position CRS – ISO/L1- ISOFIX SIZE CLASS F or symmetrically opposite – ISO/L2 – ISOFIX CLASS G.\n](image.052.png)\n\nKey\n\n1 Limits in the rearward and upwards directions\n\n2 Dashed line marks area where a support leg, or similar, of a specific vehicle CRS is allowed to protrude.\n\n3 The backwards limitation (to the right in the figure) is given by the forward-facing\n\nenvelope in Figure 2\n\n4 Further specifications of the connector area are given in ISO 13216-1, Figures 2 and 3.\n\n# \nFigure 8\n\n# Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![Side view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.053.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n4. Plane passing through the lower anchorage bar and oriented perpendicular to the median longitudinal plane of the CRF and perpendicular to the plane formed by the bottom surface of the CRF when installed in the designated seating position.\n\n5. i-Size support leg installation assessment volume representing the geometrical boundaries for an i-Size ISOFIX child restraint system support leg.\n\n6. Vehicle floor.\n\nNote: Drawing not to scale.\n\n# \nFigure 9\n\n# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":62},{"sectionNumber":"3D","sectionType":"part","heading":"view of the i-Size support leg installation assessment volume for assessing compatibility of the i-Size seating positions with support legs of i-Size child restraint systems","content":"# 3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n\n![3D view of the i-Size support leg installation assessment volume for assessing compatibility of \nthe i-Size seating positions with support legs of i-Size child restraint systems\n](image.054.png)\n\nKey:\n\n1. Child Restraint Fixture (CRF).\n\n2. ISOFIX low anchorages bar.\n\n3. Median longitudinal plane of the CRF.\n\n4. i-Size support leg installation assessment volume.\n\nNote: Drawing not to scale.","sortOrder":63}],"analysis":{"flash_summary":{"complexity_score":9,"scope_assessment":{"changed":true,"description":"Compared to a narrow seat‑belt standard that purely specified belt strength and basic installation, this version expands scope materially. The instrument bundles: (a) precise mechanical test rigs and absorber material specifications (Annex 6), (b) bench abrasion and micro‑slip tests (Annex 11), and (c) comprehensive vehicle/CRS interface compatibility rules including ISOFIX and i‑Size envelopes and support‑leg assessment volumes (Annex 17 Appendices 1 & 2). That shift moves the Regulation beyond component approval toward certifying the vehicle seat/anchorage/CRS ecosystem. Concretely, vehicle makers now must demonstrate not only that belts meet dynamic strength tests but that certain seating positions physically accept specified child‑restraint fixtures (and document alternative positions in vehicle information tables). The expanded scope raises coordination requirements across OEMs, CRS manufacturers and test labs and increases the compliance footprint (design, testing and information obligations) placed on industry."},"complexity_factors":["Multiple technical annexes with interdependencies (Annex 2, Annex 6, Annex 11, Annex 17 Appendices)","Numerous figures and diagrams specifying geometry (dozens of figures across Annex 6 and Annex 17)","At least 6 substantive tables of technical data (e.g. Annex 6 Table 1 absorber properties; manikin mass tables; Annex 17 seat position table)","Many explicit numeric tolerances and conditioning requirements (temperatures, masses, force values, dimensional tolerances e.g. 400 ± 20 kg trolley, 100 N ± 10 N fixture pushes, ±2 °C absorber temp)","Multiple cross‑references to other paragraphs/Regulations (e.g. paragraph 5.2.4/5.2.5 references; references to paragraph 6.4.1.3.3/6.4.1.3.4)","Several coded approval symbols and combinations to interpret (belt symbols A/B/S/Z and additional symbols e, m, r4N etc in Annex 2)","Nested procedural variants (dynamic tests vs restraint system tests; Type I/II/III abrasion procedures)","Complex CRS classification system with many fixture classes (ISO/F3, ISO/F2, ISO/F2X, ISO/R3, ISO/R2, ISO/R1, ISO/L1, ISO/L2)","High measurement specificity that requires calibrated lab equipment and trained operators (anchorage displacement <0.2 mm under given load, stopping device calibration requirements)"],"plain_english_summary":"**What this instrument does (mechanically)**\n\n- Specifies technical rules and lab procedures that vehicles, safety-belts and child‑restraint fittings must meet to be accepted as compliant with the Australian Design Rule that implements the UNECE Regulation on seat‑belts (ADR/UNECE Reg.16 series 06). Key elements shown in the excerpt include:\n - **Approval marks and labelling** for vehicles and belts (how a manufacturer or approval authority must mark an approved type) (Annex 2; see paragraph 5.2.4/5.2.5, Annex 2 examples).\n - **Test hardware and set‑up** for dynamic belt and restraint tests: trolley masses, seat shape, anchorage locations and tolerances, stopping device (absorbers), conditioning and temperature requirements (Annex 6, Figures 1–4; Table 1).\n - **Material and device specifications** for stopping device absorbers (physical dimensions, polyurethane characteristics, ageing/immersion test limits) (Annex 6, Table 1).\n - **Manikin and fixture specifications** used in dynamic tests (masses, segment dimensions, points where displacements are measured) (Annex 6, Tables 1–2; Figures 1–6).\n - **Abrasion, micro‑slip and other belt bench tests** (Annex 11 procedures and figures).\n - **Procedures and geometry for child restraint compatibility**: a test fixture and pass/fail checks for \"universal\" child restraint installation with vehicle belts (Annex 17, App.1), and extensive ISOFIX/i‑Size test fixtures, envelopes and installation assessment volumes for ISO/F, ISO/R, ISO/L classes and i‑Size support legs (Annex 17, App.2; Figures 1–9, tables).\n\n- The instrument is prescriptive: it sets dimensions, forces, conditioning temperatures, tolerances, and the shapes/volumes that child restraint fixtures (CRFs) must fit into during vehicle compatibility checks.\n\n**Who it affects**\n\n- Vehicle manufacturers and their engineers (seat geometry, anchorages, labelling and installation information).\n- Seatbelt and restraint system suppliers (design, labelling, energy absorbers, retractors, retractor types and additional symbols; Annex 2 examples).\n- Child restraint system (CRS) manufacturers (must design CRSs to fit the specified fixture envelopes and ISOFIX/i‑Size volumes).\n- Accredited test laboratories and certification/approval authorities (must run the specified tests and check marks and documentation).\n- Importers, fleet operators and compliance officers (must ensure vehicles and restraint systems are certified and correctly marked; see Annex 2 and Annex 17 tables).\n- Indirectly, vehicle buyers and CRS buyers (costs of compliance can affect product design and price).\n\n**Why it matters (stated purpose and what that implies mechanically)**\n\n- The stated purpose in the Regulation is to ensure seat‑belt systems and restraint interfaces meet agreed safety, interchangeability and durability standards (see dynamic test set‑ups in Annex 6, abrasion tests in Annex 11, child restraint envelopes in Annex 17). Mechanically, that is achieved by:\n - Mandating specific test apparatus, tolerances and conditioning so that test results are repeatable across labs (Annex 6 Table 1; conditioning requirements 12 hours at 15–25 °C).\n - Requiring standardised approval marks and labelling so approvals are visible and traceable across jurisdictions (Annex 2).\n - Requiring geometric compatibility tests (fixtures/envelopes) so child restraints described as “universal”, “semi‑universal”, ISOFIX or i‑Size will physically fit and have required clearances (Annex 17 App.1 & 2, Figures 1–9).\n\n**Costs, incentives, trade‑offs and implementation risks**\n\n- Who pays: manufacturers and suppliers pay for design changes, type testing and certification; test houses incur costs to build/maintain apparatus to the specified tolerances; compliance costs can be capitalised into vehicle or CRS prices paid by consumers.\n\n- Incentives and market effects: the heavy technical prescription raises the barrier to entry for new suppliers who lack accredited test capability but benefits manufacturers that can amortise test costs across many vehicles/markets. Harmonised marks can reduce trade friction (one approval mark is meaningful across members of the UNECE system), but the detailed fitting envelopes for ISOFIX/i‑Size can force vehicle redesigns (seat shape, head restraints, anchor placements), which favours larger OEMs with design flexibility.\n\n- Trade‑offs and opportunity costs: the instrument prioritises repeatable test rigs and fixed envelopes over flexible, performance‑based outcomes. That reduces ambiguity in compliance but constrains design freedom (manufacturers must fit vehicle features to the envelopes rather than demonstrate an alternative performance outcome). Some otherwise innovative restraint designs may need extra testing or bespoke approvals.\n\n- Implementation risk: precise tolerances (e.g. anchorage displacement limits, absorber material conditioning and temperature ±2 °C) demand accredited labs and careful calibration; mis‑interpretation of figures or measurement points could produce inconsistent results across labs (Annex 6, measurement tolerance sections; Annex 17 fixture placement +/-25 mm). Variation in lab capability or lack of clear measurement protocols increases regulator workload and appeals.\n\n- Compliance burden: the regulation imposes multiple specific tests (dynamic trolley tests with set masses 400 ± 20 kg / 800 kg; abrasion procedures; micro‑slip tests; CRS fixture pushes at 100 N ± 10 N). Each test requires equipment and operator skill; for smaller suppliers this is a measurable cost and time burden (Annex 6 and Annex 11 procedures; Annex 17 push forces and seating adjustments).\n\n- Bureaucratic discretion and manufacturer choices: vehicle manufacturers decide which seating positions are designated as ISOFIX/i‑Size and may specify alternative normal‑use positions (Annex 17 App.2 para 3.3). That generates a procedural interaction between manufacturer choices and regulator acceptance (information must be supplied in vehicle handbooks and Appendix 3 tables).\n\n**Concrete behaviour changes the instrument causes**\n\n- Manufacturers will (a) design seat belt anchorages, retractors and energy absorbers to meet the specified mechanical and material criteria (Annex 6, Table 1), (b) supply approval marks and documentation as specified (Annex 2), and (c) ensure vehicle seating and ISOFIX positions meet the CRS envelopes (Annex 17 App.2).\n- Test houses will standardise test trolleys, stopping devices and manikins to the declared masses and dimensions (Annex 6 Figures and Tables).\n- CRS manufacturers will target the defined ISO/F, ISO/R, ISO/L envelopes and i‑Size support leg assessment volumes when designing new restraints (Annex 17 Figures 1–9).\n\n**Net practical effect (mechanical, not political)**\n\n- Harmonises seat‑belt and child restraint interface testing and marking across vehicles and restraint devices. It increases predictability of compliance testing but raises technical compliance costs and favours manufacturers and suppliers that can internalise testing and certification costs. The Regulation shifts decision‑making onto manufacturers for seat position designation and onto certification bodies for test verification; it shifts the cost of technical conformity onto those producers and, indirectly, vehicle purchasers.\n\n(References in this summary: approval marks — Annex 2; test apparatus and absorber characteristics — Annex 6 and Table 1; abrasion/micro‑slip tests — Annex 11; child restraint installation and ISOFIX/i‑Size fixtures and envelopes — Annex 17 Appendices 1 & 2, Figures and Tables.)"},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"_metrics":{"completionTokens":519},"content_quality":"ok","complexity_score":9,"scope_assessment":{"changed":false,"description":"The legislation appears to maintain its original scope as a technical standard for seatbelt approval and testing. While it incorporates detailed annexes on testing equipment and child restraints, these are integral to the core purpose of ensuring seatbelt safety rather than an expansion beyond the original intent."},"complexity_factors":["Extensive cross-referencing to UN Regulation No. 16 and other international standards","Multiple annexes with highly technical specifications (trolley masses, polyurethane tube dimensions, anchorage geometries)","Numerous defined terms and symbol codes for belt types (A, B, S, Z, e, m, r4, r4N, etc.)","Precise measurement tolerances throughout (e.g., ±0.2mm displacement, ±2°C temperature, 15° ± 10° pitch angle)","Conditional logic for test procedures based on belt type, vehicle category, and restraint system configuration","Nested requirements with multiple exceptions and alternative compliance pathways","Integration of child restraint standards (ISOFIX, i-Size) with adult seatbelt requirements","Technical tables with material specifications (Shore hardness, breaking strength, elongation percentages)","Extensive use of diagrams and figures referenced but not fully reproduced in text"],"plain_english_summary":"This instrument adopts UN Regulation No. 16 to set technical standards for seatbelts and ISOFIX child anchorage compatibility in vehicles sold in Australia, covering approval marking, test equipment and procedures. It applies to vehicle makers, seatbelt and child restraint manufacturers, and testing labs.\n\nBy requiring detailed crash, wear and environmental tests before approval, it forces consistent, verifiable performance so belts and child restraints protect occupants in real-world collisions."}},"importantCases":[],"_links":{"self":"/api/acts/vehicle-standard-australian-design-rule-4-06-seatbelts-2018","history":"/api/acts/vehicle-standard-australian-design-rule-4-06-seatbelts-2018/history","analysis":"/api/acts/vehicle-standard-australian-design-rule-4-06-seatbelts-2018/analysis","conflicts":"/api/acts/vehicle-standard-australian-design-rule-4-06-seatbelts-2018/conflicts","importantCases":"/api/acts/vehicle-standard-australian-design-rule-4-06-seatbelts-2018/important-cases","documents":"/api/acts/vehicle-standard-australian-design-rule-4-06-seatbelts-2018/documents"}}