Document ID: chunk:federal_register_of_legislation:F2023C00154:front:0:p23
Version: federal_register_of_legislation:F2023C00154
Segment Type: other
Provision Reference: 
Character Range: 59496–64378

with a standard filament lamp, no measured value may deviate unfavourably by more than 20 per cent from the value prescribed in this Regulation.
1.2. For the periodic records, the reading is limited to points B50[12] and left and right bottom corners of zone D (see Figure 2 in Annex 4).
2. In the case of Class F3 front fog lamps:
2.1. When testing the photometric performances of any front fog lamp chosen at random according to paragraph 6.4. of this Regulation, no measured value of the luminous intensity may deviate unfavourably by more than 20 per cent.
2.2. When testing the photometric performances of any front fog lamp chosen at random according to paragraph 6.4. of this Regulation, no measured value of the luminous intensity may deviate unfavourably by more than 20 per cent.
2.3. For the measured values in the table according to paragraph 6.4.3. of this Regulation the respective maximum deviations may be:

                                                                                                  Vertical position*  Horizontal position*
Designated lines or zones                                                                         above h +           left of v: -          Luminous intensity candela  To comply
                                                                                                  below h -           right of v: +
Equivalent                                                                                        Equivalent
20 per cent                                                                                       30 per cent
Point 1, 2**                                                                                      +60°                ±45°                  115 max                     130 max     All points
Point 3, 4**                                                                                      +40°                ±30°
Point 5, 6**                                                                                      +30°                ±60°
Point 7, 10**                                                                                     +20°                ±40°
Point 8, 9**                                                                                      +20°                ±15°
Line 1**                                                                                          +8°                 -26° to +26°          160 max                     170 max     All line
Line 2**                                                                                          +4°                 -26° to +26°          180 max                     195 max     All line
Line 3                                                                                            +2°                 -26° to +26°          295 max                     320 max     All line
Line 4                                                                                            +1°                 -26° to +26°          435 max                     470 max     All line
Line 5                                                                                            0°                  -10° to +10°          585 max                     630 max     All line
                                                                                                                      from 5° inwards
Line 6***                                                                                         -2.5°                                     2,160 min                   1,890 min   All line
                                                                                                                      to 10° outwards
Line 8                                                                                            -1.5° to -3.5°      -22° and +22°         880 min                     770 min     One or more points
L and R***
Line 9                                                                                            -1.5° to -4.5°      -35° and +35°         360 min                     315 min     One or more points
L and R***
Zone D                                                                                            -1.5° to -3.5 °     -10° to +10°          14,400 max                  15,600 max  Whole zone

      * The co-ordinates are specified in degrees for an angular web with a vertical polar axis.
      ** See paragraph 6.4.3.4. of this Regulation.
      *** See paragraph 6.4.3.2. of this Regulation.

    2.4. For the periodic records, the photometric measurements for verification of conformity shall at least yield data for the points 8 and 9, and the lines 1, 5, 6, 8 and 9 as specified in paragraph 6.4.3. of this Regulation.

Annex 3

Examples of arrangements of approval marks for front fog lamps of Class B and Class F3
Figure 1

The device bearing the above approval marking is a fog