MIL-STD-450B, MILITARY STANDARD: SIGNS FOR CONTAMINATED OR DANGEROUS AREAS (22 OCT 1968) [NO S/S DOCUMENT]

MIL-STD-450B, MILITARY STANDARD: SIGNS FOR CONTAMINATED OR DANGEROUS AREAS (22 OCT 1968) [NO S/S DOCUMENT]., This standard implements the treaties and agreements cited in the forward, and is the design standard for the signs and symbols covered.