Document ID: chunk:federal_register_of_legislation:F2023C00142:reg:1:p6
Version: federal_register_of_legislation:F2023C00142
Segment Type: reg
Provision Reference: reg 1 (pt 6/12)
Character Range: 88179–91103

subjected to photometric measurements at the points provided for in the Regulation, the reading being limited to points Emax, HV [2/], HL, HR [3/] in the case of the driving beam, and to points B 50 L (or R) [1/], HV, 50 V, 75 R (or L) and 25 L2 (or R2) 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  the acceptability of his products in order to meet the specifications laid down for verification of conformity of products in paragraph 9.1. of this Regulation.
         The criteria governing the acceptability shall be such that, with a confidence level of 95 %, the minimum probability of passing a spot check in accordance with annex 9 (first sampling) would be 0.95.

       Annex 9

       MINIMUM REQUIREMENTS FOR SAMPLING BY AN INSPECTOR

         1.              GENERAL
         1.1. The conformity requirements shall be considered satisfied from a mechanical and a geometric standpoint, in accordance with the requirements of this Regulation, if any, if the differences do not exceed inevitable manufacturing deviations.
         1.2. With respect to photometric performance, the conformity of mass-produced headlamps shall not be contested if, when testing photometric performance of any headlamp chosen at random and measured at 13.5 V +/- 0.1 V or as otherwise specified and:
         either
         equipped with a removable standard gas-discharge light source according to paragraph 6.1.3. The luminous flux of this gas-discharge light source may differ from the reference luminous flux specified in Regulation No. 99. In this case, the illuminances shall be corrected accordingly.
         or
         equipped with the serial production gas-discharge light source and the serial ballast.  The luminous flux of this light source may deviate from the nominal luminous flux due to light source and ballast tolerances as specified in Regulation No. 99, accordingly the measured illuminances may be corrected by 20 % in the favourable direction.
         1.2.1. no measured value deviates unfavourably by more than 20 % from the values prescribed in this Regulation.
         In the glare zone the maximum deviation may be respectively:
B 50 L (or R): [1/]           0.20  lx equivalent 20 %
                              0.30  lx equivalent 30 %
On line H/H2
(or line H/H3/H4) and above:  0.30  lx equivalent 20 %
                              0.45  Ix equivalent 30 %

         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 Ix) and related to that aiming at one point of each area delimited on the measuring screen (at 25 m) by a circle of 15 cm in radius around points B 50