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Vehicle Standard (Australian Design Rule 45/01 – Lighting and Light Signalling Devices not Covered by ECE Regulations) 2006
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Turn the raw legal text into a practical explanation grounded in Vehicle Standard (Australian Design Rule 45/01 – Lighting and Light Signalling Devices not Covered by ECE Regulations) 2006.
7.1. All measurements shall be made with a standard filament globe of the category prescribed for the device, or LED light source as specified by the manufacturer, the supply voltage being so regulated as to produce the normal luminous flux prescribed. In the case that the LED light source is fitted to the unit and not removable, the unit shall be tested as supplied at the voltage specified by the manufacturer.
7.2. Photometric measurements
7.2.1. Measurement methods
7.2.1.1. During photometric measurements, stray reflections shall be avoided by appropriate masking.
7.2.1.2. Measurements shall be carried out in such a way as to meet the following requirements:
7.2.1.2.1. The distance of measurement shall be such that the law of the inverse of the square of the distance is applicable;
7.2.1.2.2. The measuring equipment shall be such that the angular aperture of the receiver viewed from the reference centre of the light is comprised between 10’ and one degree;
7.2.1.2.3. The intensity requirement for a particular direction of observation shall be deemed to be satisfied if that requirement is met in a direction deviating by not more than one-quarter of a degree from the direction of observation.