Common use of Measurement methods Clause in Contracts

Measurement methods. 1.1. During photometric measurements, stray reflections shall be prevented by appropriate masking. 1.2. Should the results of measurements be challenged, measurements shall be carried out in such a way as to meet the following requirements: 1.2.1. the distance of measurements shall be such that the law of the inverse of the square of the distance is applicable; 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 between 10' and 1°; 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 15' from the direction of observation. 1.3. In the case where the device may be installed on the vehicle in more than one or in a field of different positions the photometric measurements shall be repeated for each position or for the extreme positions of the field of the reference axis specified by the manufacturer. Annex 4

Measurement methods. 1.1. During photometric measurements, stray reflections shall be prevented by appropriate masking. 1.2. Should the results of measurements be challenged, measurements shall be carried out in such a way as to meet the following requirements: 1.2.1. the distance of measurements shall be such that the law of the inverse of the square of the distance is applicable; 1.2.2. the measuring equipment shall be such that the angular aperture of the receiver viewed from the reference centre of the light lamp is between 10' and 1°; 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 15' from the direction of observation. 1.3. In the case where the device may be installed on the vehicle in more than one or in a field of different positions the photometric measurements shall be repeated for each position or for the extreme positions of in the field of the reference axis specified by the manufacturer. Annex 4.

Measurement methods. 1.1. During photometric measurements, stray reflections shall be prevented by appropriate masking. 1.2. Should the results of measurements be challenged, measurements shall be carried out in such a way as to meet the following requirements: 1.2.1. the distance of measurements shall be such that the law of the inverse of the square of the distance is applicable; 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 between 10' and 1°; 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 15' from the direction of observation. 1.3. In the case where the device may be installed on the vehicle in more than one or in a field of different positions the photometric measurements shall be repeated for each position or for the extreme positions of the field of the reference axis specified by the manufacturer. Annex 4.