MIL-I-24772, MILITARY SPECIFICATION, INDICATOR, OXYGEN, COMBUSTIBLE GAS, CARBON MONOXIDE, AND HYDROGEN SULFIDE, PORTABLE (17 MAR 1992)

MIL-I-24772, MILITARY SPECIFICATION, INDICATOR, OXYGEN, COMBUSTIBLE GAS, CARBON MONOXIDE, AND HYDROGEN SULFIDE, PORTABLE (17 MAR 1992)., This specification covers the requirements for portable indicators used to detect and indicate existing levels of oxygen, combustible gas, hydrogen sulfide, and carbon monoxide.