Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p28
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 28/35)
Character Range: 518522–521248

as examples and are not exhaustive.

        1. P or D or F (HC or HR or B)

2. P+F (HC B)  or P+D (HCR)
3. P+F (HC B/)  or HC/B or P+D (HC/R)
 Annex 5

MINIMUM REQUIREMENTS FOR CONFORMITY OF PRODUCTION CONTROL PROCEDURES

       1.  GENERAL

       1.1.  The conformity requirements shall be considered satisfied from a mechanical and a geometrical standpoint, if the differences do not exceed inevitable manufacturing deviations within the requirements of this Regulation.  This condition also applies to colour.

       1.2.  With respect to photometric performances, the conformity of mass-produced headlamps shall not be contested if, when testing photometric performances of any headlamp chosen at random and equipped with a standard (étalon) filament lamp:

       1.2.1.  no measured value deviates unfavourably by more than 20 per cent from the value prescribed in this Regulation. For values B 50 L (or R) and zone III, the maximum unfavourable deviation may be respectively:

                       B 50 L (or R): 0.2  lx equivalent 20 per cent
                       0.3  lx equivalent 30 per cent
                       Zone III  0.3  lx equivalent 20 per cent
                       0.45 lx equivalent 30 per cent

      1.2.2.  or if

       1.2.2.1. for the passing beam, the values prescribed in this Regulation are met at HV (with a tolerance of + 0.2 lx) and related to that aiming at least one point of each area delimited on the measuring screen (at 25 m) by a circle 15 cm in radius around points B 50 L (or R) [21]/ (with a tolerance of + 0.1 lx), 75 R (or L), 50 V, 25 R, 25 L, and in the entire area of zone IV which is not more than 22.5 cm above line 25 R and 25 L;

       1.2.2.2. and if, for the driving beam, HV being situated within the isolux 0.75 Emax, a tolerance of + 20 per cent for maximum values and -20 per cent for minimum values is observed for the photometric values at any measuring point specified in paragraph 6.3.2. of this Regulation.

       1.2.3.  If the results of the test described above do not meet the requirements, the alignment of the headlamp may be changed, provided that the axis of the beam is not displaced laterally by more than 1° to the right or left. [22]/

       1.2.4.  If the results of the tests described above do not meet the requirements, tests shall be repeated using another standard (étalon) filament lamp.

       1.3.  With respect to the verification of the change in vertical position of the cut-off line under the influence of heat, the following procedure shall be applied:

       One of the sampled headlamps shall be tested according to the procedure described in paragraph 2.1. of Annex 4 after being subjected three consecutive times to