Document ID: chunk:federal_register_of_legislation:F2023C00140:body:0:p15
Version: federal_register_of_legislation:F2023C00140
Segment Type: other
Provision Reference: 
Character Range: 41261–44199

for each daytime running lamp (in the direction H = 0° and V = 0°).

       3.2. Within the field of light distribution of paragraph 3 above schematically shown as a grid, the light pattern should be substantially uniform, i.e. in so far as the light intensity in each direction of a part of the field formed by the grid lines shall meet at least the lowest minimum value being shown on the grid lines surrounding the questioned direction as a percentage.

       Figure 4

       Light source modules

The light source module bearing the identification code shown above has been approved together with a lamp approved in Italy (E 3) under approval number 17325.
Annex 4

Minimum requirements for conformity of production control procedures

       1. General

       1.1. The conformity requirements shall be considered satisfied from a mechanical and geometric standpoint, if the differences do not exceed inevitable manufacturing deviations within the requirements of this Regulation.

       1.2. With respect to photometric performances, 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 light source 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 per cent from the values prescribed in this Regulation.

       1.2.2. If, in the case of a lamp equipped with replaceable light sources and if results of the test described above do not meet the requirements, tests on lamps shall be repeated using another standard light source.

       1.3. The chromaticity coordinates shall be complied with when the lamp is equipped with a standard filament lamp(s), or for lamps equipped with non-replaceable light sources (filament lamps or other), when the colorimetric characteristics are verified with the light source present in the lamp.

       2. Minimum requirements for verification of conformity by the manufacturer

For each type of lamp the holder of the approval mark shall carry out at least the following tests, at appropriate intervals.  The tests shall be carried out in accordance with the provisions of this Regulation.
If any sampling shows non-conformity with regard to the type of test concerned, further samples shall be taken and tested.  The manufacturer shall take steps to ensure the conformity of the production concerned.

       2.1. Nature of tests

Tests of conformity in this Regulation shall cover the photometric and colorimetric characteristics.

       2.2. Methods used in tests

       2.2.1. Tests 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