Document ID: chunk:federal_register_of_legislation:F2023C00228:reg:1:p15
Version: federal_register_of_legislation:F2023C00228
Segment Type: reg
Provision Reference: reg 1 (pt 15/15)
Character Range: 662662–664023

realignment.  The latter is limited only by the requirements of paragraph 6.3. (the provisions of paragraph 6.3. are not applicable to passing beam headlamps).
         [36]/ For the test schedule see Annex 8 to this Regulation.
[37]/ When the tested headlamp includes signalling lamps, the latter shall be lit for the duration of the test.  In the case of a direction indicator lamp, it shall be lit in flashing mode with an on/off time of approximately one to one.
[38]/  Should two or more lamp filaments be simultaneously lit when headlamp flashing is used, this shall not be considered as being normal use of the filaments simultaneously.
[39]/ NaCMC represents the sodium salt of carboxymethylcellulose, customarily referred to as CMC.  The NaCMC used in the dirt mixture shall have a degree of substitution (DS) of 0.6-0.7 and a viscosity of 200-300 cP for a 2 per cent solution at 20 °C.
[40]/ The tolerance on quantity is due to the necessity of obtaining a dirt that correctly spreads out on all the plastic lens.

[41]/ 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.
[42]/  For L2 it is recommended to use a focal distance of about 80 mm.
[43]/ This paragraph will be amended, if an objective test method is available.