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ANSI C78.1451-2002 (S2018)
American National Standard for Electric Lamps—Use of Protective Shields with Tungsten Halogen (TH) Lamps—Cautionary Notice
Applies to the use of protective shields with all TH lamps that do not have an integral device that protects against shattering and ultraviolet emissions.
NEMA: National Electrical Manufacturers Association [nema]