Document ID: chunk:federal_register_of_legislation:F2023C00142:reg:21:p15
Version: federal_register_of_legislation:F2023C00142
Segment Type: reg
Provision Reference: reg 21 (pt 15/15)
Character Range: 71482–72781

edges of the cuts shall be permitted, provided that the impaired area does not exceed 15 % of the gridded surface.
         2.6. Tests of the complete headlamp incorporating a lens of plastic material
         2.6.1. Resistance to mechanical deterioration of the lens surface
         2.6.1.1. Tests
         The lens of lamp sample No. 1 shall be subjected to the test described in paragraph 2.4.1. above.
         2.6.1.2. Results
         After the test, the results of photometric measurements carried out on the headlamp in accordance with this Regulation shall not exceed by more than 30 % the maximum values prescribed at points B 50 L and HV and not be more than 10 % below the minimum values prescribed at point 75 R (in the case of headlamps intended for left- hand traffic, the points to be considered are B 50 R, HV and 75 L).
         2.6.2. Test of adherence of coatings, if any
         The lens of lamp sample No. 2 shall be subjected to the test described in paragraph 2.5. above.

       Annex 5 - Appendix 1

       CHRONOLOGICAL ORDER OF APPROVAL TESTS

       A. Tests on plastic materials (lenses or samples of material supplied pursuant to paragraph 2.2.4. of this Regulation)

Samples                                                   Lense or sample of Material  Lenses
Test