Document ID: chunk:federal_register_of_legislation:F2023C00134:body:0:p11
Version: federal_register_of_legislation:F2023C00134
Segment Type: other
Provision Reference: 
Character Range: 27386–30426

shall generally be carried out in accordance with the methods set out in this Regulation.
       2.2.2. In any test of conformity carried out by the manufacturer, equivalent methods may be used with the consent of the competent authority responsible for approval tests . The manufacturer is responsible for proving that the applied methods are equivalent to those laid down in this Regulation.
       2.2.3. The application of paragraphs 2.2.1. and 2.2.2. requires regular calibration of test apparatus and its correlation with measurements made by a competent authority.
       2.2.4. In all cases the reference methods shall be those of this Regulation, particularly for the purpose of administrative verification and sampling.
       2.3. Nature of sampling
       Samples of lamps shall be selected at random from the production of a uniform batch. A uniform batch means a set of lamps of the same type, defined according to the production methods of the manufacturer.
       The assessment shall in general cover series production from individual factories. However, a manufacturer may group together records concerning the same type from several factories, provided these operate under the same quality system and quality management.
       2.4. Measured and recorded photometric characteristics
       The sampled lamp shall be subjected to photometric measurements for the minimum values at the points listed in annex 4 and the chromaticity coordinates listed in annex 5, provided for in the Regulation.
       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 6 (first sampling) would be 0.95.
       Annex 6
       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 lamps shall not be contested if, when testing photometric performances of any lamp chosen at random and equipped with a standard filament lamp, or when the lamps are equipped with non-replaceable light sources (filament lamps or other), and when all measurements are made at 6.75 V, 13.5 V or 28.0 V respectively:
       1.2.1. no measured value deviates unfavourably by more than 20 % from the values prescribed in this Regulation.
       1.2.2. If, in the case of a lamp equipped with a replaceable light source