1. PERFORMANCE REQUIREMENTS

1.1 The ‘Brake System’ of trailers must comply with the requirements of this ADR including clause 7.5 with the ‘Antilock Systems’ operational and in the event of a failure of the ‘Antilock System’ .

1.2 At speeds exceeding 15 km/h the wheels on the ‘Axle(s)’ specified in clause 2.1 of this APPENDIX must remain unlocked when a ‘Control Signal’ of 1.0 ‘E’ (650 kPa) is suddenly applied from an initial speed of 40 km/h +5 to -1 km/h and from an initial speed of at least 80 km/h on a road surface having approximately uniform surface friction on both sides of the vehicle.

1.2.1 This test is to be performed with the trailer laden to both ‘Lightly Laden Test Mass’ and ‘Maximum Loaded Test Mass’ and using the general test conditions from clause 10 and the particular test conditions from clause 11, amended as regards ‘Control Signal’ amplitude and application rates .

1.2.2 Brief periods of locking of the wheels are allowed, but stability must not be affected.

1.1.3 The operation of an ‘Antilock System’ must not be adversely affected by magnetic or electric fields.