2012GOST 23118-2012 Building steel structures. General specifications
1999GOST 23118-1999 Building steel structures. General specifications
1980GOST 4.253-1980 Product-quality index system. Beilding. Steel structures. Nomenclature of indixes
GOST 4.253-1980 Product-quality index system. Beilding. Steel structures. Nomenclature of indixes was changed to GOST 23118-1999 Building steel structures. General specifications.