Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p30
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 30/35)
Character Range: 523739–526554

The sampled headlamps shall be subjected to photometric measurements at the points provided for in the Regulation, the reading being limited at the points Emax, HV [23]/, HL, HR [24]/ in the case of a driving beam, and to points B 50 L (or R), HV, 50 V, 75 R (or L) and 25 L (or R) in the case of the passing beam (see figure in Annex 3).

       2.5.                            Criteria governing acceptability

       The manufacturer is responsible for carrying out a statistical study of the test results and for defining, in agreement with the Competent Authority, criteria governing acceptability of his products in order to meet the specification laid down for verification of conformity of products in paragraph 10.1. of this Regulation.

       The criteria governing acceptability shall be such that, with a confidence level of 95 per cent, the minimum probability of passing a spot check in accordance with Annex 7 (first sampling) would be 0.95.
 Annex 6

REQUIREMENTS FOR LAMPS INCORPORATING LENSES OF PLASTIC MATERIAL - TESTING OF LENS OR MATERIAL SAMPLES AND OF COMPLETE LAMPS

       1.  GENERAL SPECIFICATIONS

       1.1.  The samples supplied pursuant to paragraph 2.2.4. of this Regulation shall satisfy the specifications indicated in paragraphs 2.1. to 2.5. below.

       1.2.  The two samples of complete lamps supplied pursuant to paragraph 2.2.3. of this Regulation and incorporating lenses of plastic material shall, with regard to the lens material, satisfy the specifications indicated in paragraph 2.6. below.

       1.3.  The samples of lenses of plastic material or samples of material shall be subjected, with the reflector to which they are intended to be fitted (where applicable), to approval tests in the chronological order indicated in table A reproduced in Appendix 1 to this annex.

       1.4.  However, if the lamp manufacturer can prove that the product has already passed the tests prescribed in paragraphs 2.1. to 2.5. below, or the equivalent tests pursuant to another regulation, those tests need not be repeated; only the tests prescribed in Appendix 1, table B, shall be mandatory.

       2.  TESTS

       2.1.  Resistance to temperature changes

       2.1.1.  Tests

       Three new samples (lenses) shall be subjected to five cycles of temperature and humidity (RH = relative humidity) change in accordance with the following programme:

       3 hours at 40°C + 2°C and 85-95 per cent RH;

       1 hour at 23°C + 5°C and 60-75 per cent RH;

       15 hours at -30°C + 2°C;

       1 hour at 23°C + 5°C and 60-75 per cent RH;

       3 hours at 80°C + 2°C;

       1 hour at 23°C + 5°C and 60-75 per cent RH;

       Before this test, the samples shall be kept at 23° C + 5° C and 60-75 per cent RH for at least four hours.

               Note: The periods