MIL-STD-609A, MILITARY STANDARD: RESPIRATORS, AIR FILTERING (30-MAR-1972) [S/S BY MIL-R-17729 AND A-A-1633]

MIL-STD-609A, MILITARY STANDARD: RESPIRATORS, AIR FILTERING (30-MAR-1972) [S/S BY MIL-R-17729 AND A-A-1633]., This standard is a presentation of nomenclature, technical description, military and typical commercial uses, directions for use, packaging data, labeling, general safety precautions, air filtering.