This standard specifies the product classification, technical requirements, test methods, inspection rules and signs, packaging, transportation, and storage of ordinary photometric standard bulbs (hereinafter referred to as bulbs). This standard applies to bulbs used as standard light sources when measuring the total luminous flux value.
GB 15040-1994 history
2021GB/T 15040-2021 Working standard lamps for the measurement of luminous flux
1994GB 15040-1994 Photometrle standard lamp for general lighting service