This standard covers both general type and quick-donning type mask assemblies in the following classes: a Class A, oronasal, demand b Class B, oronasal, pressure-demand c Class C, full face, demand d Class D, full face, pressure-demand
SAE AS452A-2003 history
2014SAE AS452B-2014 Oxygen Mask Assembly, Demand and Pressure Breathing, Crew
2003SAE AS452A-2003 Oxygen Mask Assembly, Demand and Pressure Breathing, Crew
1965SAE AS452A-1965 Oxygen Mask Assembly, Demand and Pressure Breathing, Crew
1956SAE AS452-1956 OXYGEN MASKS FOR NON-MIISTARY AIRPLANES