MIL-P-27407A, MILITARY SPECIFICATION: PROPELLANT PRESSURIZING AGENT, HELIUM (28 NOV 1978) [S/S BY MIL-PRF-27407B]

MIL-P-27407A, MILITARY SPECIFICATION: PROPELLANT PRESSURIZING AGENT, HELIUM (28 NOV 1978) [S/S BY MIL-PRF-27407B]., This specification covers the requirements for two types of helium. Helium furnished under this specification shall be Bureau of Mines helium pursuant to the Code of Federal Regulations, Title 30 CFR 602.