O-I-490A, FEDERAL SPECIFICATION: INHIBITOR, CORROSION, LIQUID COOLING SYSTEM (26-APR-1965) [S/S BY MIL-A-53009 AND MIL-A-46153]

O-I-490A, FEDERAL SPECIFICATION: INHIBITOR, CORROSION, LIQUID COOLING SYSTEM (26-APR-1965) [S/S BY MIL-A-53009 AND MIL-A-46153]., This specification covers one type and one grade of corrosion inhibitor intended for inhibiting water and/or O-A-548, Antifreeze, Ethylene Glycol, Inhibited, Type I.