scope:

This Approved Method describes photometric testing procedures and reporting guidelines for reflector type lamps and LED based lamps that mimic this traditional style of lamp. The application of the described procedures and guidelines will improve reproducibility within a laboratory, and will improve measurement agreement and facilitate comparison of results between laboratories. This laboratory method does not apply to the following: lamps of standard bulb shape to which an integral reflector is added, such as silver-bowl and silveredneck lamps; reflector type lamps that are designed for special applications, such as automotive headlamps and projection lamps, for which lamp specific test procedures have been established; or lamps that are known to have special testing requirements beyond those addressed in this laboratory method, such as linear fluorescent reflector lamps that have special temperature or orientation requirements.