GOST 9.014-1978 Unified system of corrosion and ageing protection. Temporary corrosion protection of products. General requirements*, 1978-04-19 Update
GOST 9.306-1985 Unified system of corrosion and ageing protection. Metallic and non-metallic inorganic coatings. Symbols*, 1985-04-19 Update
GOST 13977-1974 history
1974GOST 13977-1974 Tube connections on external cone. Specifications