Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p10
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 10/40)
Character Range: 365111–367795

7.
[7/] The test screen must be sufficiently wide to allow examination of the "cut-off" over a range of at least 5 degrees from the line vv.
[8/] If, in the case of a unit designed to meet the requirements of this Regulation with respect to the passing beam    only, the focal axis diverges appreciably in from the general direction of the beam, lateral adjustment shall be effected in the manner which best satisfies the requirements for illumination at points 75 R and 50 R for right-hand traffic and at points 75 L and 50 L for left-hand traffic.
[9/] A unit designed to emit a passing beam may incorporate a driving beam not complying with the specification.     10/The limit of realignment of 1 degrees towards the right or left is not incompatible with vertical realignment,,   which is only limited by the conditions laid down in paragraph 8.9.
[11/] These specifications correspond to the following trichomatic coordinates: selective yellow (yellow within the meaning of annex 5, appendix, of the 1968 Convention on Road Traffic)
Limit towards red                         y > 0.138 + 0.580x
Limit towards green                     y < 1.29x - 0.100
Limit towards white                     y >   -x + 0.966
Limit towards spectrum edge       y <   -x + 0.992
[12/] This requirement will be the subject of a recommendation for the benefit of administrations.
[*/] If the projected area of the reflector is not circular, the diameter shall be that of a circle having the same area as the projected area of the apparent  useful surface of the reflector.
[2/]1/ Distinguishing number of the country which has granted/extended/ refused/withdrawn approval (see approval provisions in the Regulation).
2/ Strike out what does not apply.
[3/] Indicate the appropriate marking selected from the list below:
SCR,  SCR,  SCR, SC,  SC,  SC,  SR,  SM,  SM,  SM,  SC/R,  SC/R,  SC/R,
                                 
SC/,  SC/,  SC/,  SCR PL,  SCR PL,  SCR PL, SC PL,  SC PL,  SC PL
                            
SR PL,  SMPL,  SMPL,  SMPL, SC/R PL,  SC/R PL,  SC/R PL,  SC/PL,  SC/PL,  SC/PL
                            
[1/] Letters in brackets refer to headlamps intended for left-hand traffic.
[10/] See the corresponding footnotes in the text of the Regulation.
[1/] When the driving beam is reciprocally incorporated with the passing beam, HV in the case of the driving beam shall be the same measuring point as in the case of the passing beam.
[2/] HL and HR: points on "hh" located at 1.125 m to the left and to the right of point HV respectively.
[2/]
[1/] Should two filaments be simultaneously lit when headlamp flashing is used, this shall not be considered as