GOST 21983 1976 Edition, June 29, 1976 Commercial explosives. Uglenits. Specifications
GOST 21990 1976 Edition, June 29, 1976 Magnesium and magnesium alloys plates. Specifications
GOST 21892 1976 Edition, May 25, 1976 Rotors and transmission of helicopters. Terms and definitions
GOST 21987 1976 Edition, June 29, 1976 Commercial explosives. Granulites. Specifications
GOST 21890 1976 Edition, May 25, 1976 "Fuselage, wings and empennage of aircrafts and helicopters. Terms and definitions"
GOST 21891 1976 Edition, May 25, 1976 Landing gear of aircrafts and helicopters. Terms and definitions
GOST 21901 1976 Edition, May 25, 1976 Aircraft pallets type PA-5,6 and PA-2,5. General specifications
GOST 21877.3 1976 Edition, May 24, 1976 Tin and lead babbits. Methods for the determination of copper and lead
GOST 21877.11 1976 Edition, May 24, 1976 Tin and lead babbits. Method for the determination of nickel
GOST 21877.8 1976 Edition, May 24, 1976 Tin and lead babbits. Methods for the determination of zinc
GOST 21877.9 1976 Edition, May 24, 1976 Tin and lead babbits. Methods for the determination of cadmium
GOST 21876.1 1976 Edition, May 24, 1976 Ferromanganese. Method for the determination of manganese content