Document ID: chunk:federal_register_of_legislation:F2024C00147:body:0:p13
Version: federal_register_of_legislation:F2024C00147
Segment Type: other
Provision Reference: 
Character Range: 37783–40601

surfaces with a changeable degree of reflection, the "day" position shall allow the colours of the signals used for road traffic to be recognized. The value of the normal coefficient of reflection in the "night" position shall be not less than 4 per cent.

       6.1.2.2.6. The reflecting surface shall retain the characteristics laid down in paragraph 6.1.2.2.5. above in spite of prolonged exposure to adverse weather conditions in normal use.

       6.1.3. Test

       6.1.3.1. Mirrors in Classes I to VI and Class VII (having fitments identical to Class III) shall be subjected to the tests described in paragraphs 6.1.3.2.1. and 6.1.3.2.2. below. Class VII mirrors with a stem, shall be subjected to the tests described in paragraph 6.1.3.2.3. below.

       6.1.3.1.1. The test provided for in paragraph 6.1.3.2. below shall not be required in the case of any exterior mirror of which no part is less than 2 m from the ground, regardless of the adjustment position, when the vehicle is under a load corresponding to its maximum technically permissible mass.

       This derogation also applies to the attachments of mirrors (attachment plates, arms, swivel joints, etc.) which are situated less than 2 m from the ground and which do not project beyond the overall width of the vehicle, measured in the transverse plane passing through the lowest mirror attachments or any other point forward of this plane if this configuration produces a greater overall width.

       In such cases, a description specifying that the mirror shall be mounted so as to conform to the above-mentioned conditions for the positioning of its attachments on the vehicle shall be provided.

       Where advantage is taken of this derogation, the arm shall be indelibly marked with the symbol

       and the type approval certificate shall be endorsed to this effect.

       6.1.3.2. Impact test

       The test according to this paragraph is not to be carried out for devices integrated in the bodywork of the vehicle and providing a frontal deflecting area of an angle not more than 45° measured in relation to the longitudinal median plane of the vehicle, or devices not protruding more than 100 mm measured beyond the circumscribing bodywork of the vehicle according to Regulation No. 26.

       6.1.3.2.1. Description of the test rig

       6.1.3.2.1.1. The test rig consists of a pendulum capable of swinging about two horizontal axes at right angles to each other, one of which is perpendicular to the plane containing the "release" trajectory of the pendulum.

       The end of the pendulum comprises a hammer formed by a rigid sphere with a diameter of 165 ± 1 mm having a 5 mm thick rubber covering of Shore A hardness 50.

       A device is provided which permits determination of the maximum angle assumed by the