GOST 427-1975 Measuring metal rules. Basic parameters and dimensions. Specifications*, 1975-04-20 Update
GOST 5439-1976 Natural and synthetic combustion gases. Method for determination of volume fraction of components using a set of gas analysers (SGA)*, 1976-04-20 Update
GOST 5556-1981 Hygroscopic medical cotton wool. Specifications*, 1981-04-20 Update