MIL-L-3891B, MILITARY SPECIFICATION, LUMINESCENT MATERIAL AND EQUIPMENT, (NONRADIOACTIVE) (16 DEC 1974) [S/S BY ASTM-E2072, ASTM-E2073, AND ASTM-E2030]

MIL-L-3891B, MILITARY SPECIFICATION, LUMINESCENT MATERIAL AND EQUIPMENT, (NONRADIOACTIVE) (16 DEC 1974) [S/S BY ASTM-E2072, ASTM-E2073, AND ASTM-E2030]., This specification covers two types of photo-luminescent materials for operational military uses in various forms, shapes, colors, and sizes.