Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p6
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 6/40)
Character Range: 355306–358117

than    20%

         one headlamp   not more than    20%

       3.2.1.2. or if the conditions of paragraph 1.2.2. for sample C are not fulfilled:

       3.3. Approval withdrawn

       Conformity shall be contested and paragraph 14 applied if, following the sampling procedure in Figure 1 of this Annex, the deviations of the measured values of the headlamps are:

       3.3.1. sample C

       C3: one headlamp   not more than    20%

         one headlamp   more than    20%

       C4: both headlamps  more than    20%

       3.3.2 sample D

       D3: in the case of C2

         one headlamp   0 or more than    0%

         one headlamp   more than    20%

       3.3.3. or if the conditions of paragraph 1.2.2. for samples C and D are not fulfilled.

       4. CHANGE OF THE VERTICAL POSITION OF THE CUT-OFF LINE

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

       One of the headlamps of sample A after sampling procedure in Figure 1 of this Annex shall be tested according to the procedure described in paragraph 2.1. of Annex 4 after being subjected three consecutive times to the cycle described in paragraph 2.2.2. of Annex 4.

       The headlamp shall be considered as acceptable if Dr does not exceed 1.5 mrad.

       If this value exceeds 1.5 mrad but is not more than 2.0 mrad, the second headlamp of sample A shall be subjected to the test after which the mean of the absolute values recorded in both samples shall not exceed 1.5 mrad.

       However, if this value of 1.5 mrad on sample A is not complied with, the two headlamps of sample B shall be subjected to the same procedure and the value of Dr for each of them shall not exceed 1.5 mrad.

[*/] Nothing in this Regulation shall prevent a Party to the Agreement applying this Regulation from prohibiting the combination of a headlamp incorporating a lens of plastic material approved under this Regulation with a mechanical headlamp-cleaning device (with wipers).
[2/] Type of filament lamp" should not be confused with "category of filament lamp".  This Regulation concerns headlamps using filament lamps of categories R2 and/or HS1.  These categories of filament lamps differ essentially in their design and, more particularly, in the cap.  They are not interchangeable, but within one filament lamp category there are normally several types.
[1/] Application for approval of a filament lamp: see Regulation No. 37.
[3/] In the case of headlamps designed to meet the requirements of traffic moving on one side of the road only (either right or left), it is further recommended that the area which can be occulted to prevent discomfort to users in a country where traffic moves on the opposite side