描述了在测试钨丝灯或放电灯是否符合限值时使用的灯头温升的标准测量方法。 介绍了装有各种尺寸ES和BC灯帽的灯的试验灯座的试验方法和规范。这种方法已广泛用于白炽灯，但其应用不限于那种类型的灯。 1999年3月更正的内容已列入本副本。

Describes the standard method of measurement of lamp cap temperature rise which is to be used when testing tungsten filament or discharge lamps for compliance with the limits. Covers the method of test and the specifications for test lampholders for lamps fitted with various sizes of ES and BC caps. This method has been used widely for incandescent lamps but its application is not limited to that type of lamp. The contents of the corrigendum of March 1999 have been included in this copy.