scope:

This standard is applicable to replaceable lamps (filament lamps and discharge lamps) to be used in headlamps, fog-lamps and signalling lamps for road vehicles. It is especially applicable to those lamps which are the subject of legislation. In particular, it includes the lamps containes in Regulations No. 37 and No. 99 of the Geneva agreement of 20 march 1958 of the United Nations Economic Commission for Europe (ECE). However, the standard may be used for other lamps falling under the scope of this standard. This standard specifies the technical requirements with methods of tests and basic interchangeability (dimensional, electrical and luminous) for lamps of normal production and for standard (étalon) lamps. For most of the requirements given in this standard reference is made to the "relevant data sheet". For all lamps listed in Clause 5, data sheets are contained in this standard. For other lamps the rrelevant data are supplied by the lamps manufacturer or responsible vendor. It could be based on national legislation. Other requirements such as lamp life, lumen maintenance, torsion strength and resistance to vibration and shock are specified in IEC 60810. The latter standard also gives information for guidance of lighting equipment design, such as temperature limits and maximum lamp outlines. Road vehicle lamps for supplementary purposes which are not the subject of legislation are specified in IEC 60983.