GOST 8829-1985 Prefabricated reinforced concrete structures and elements. Methods of testing and estimation of strength, rigidity and resistance to cracking
GOST 27215-1987 history
2013GOST 21506-2013 Reinforced concrete ribbed floor slabs of 300 mm depth for buildings and structures. Specifications
1987GOST 21506-1987 Reinforced concrete ribbed floor slabs of 300 mm depth for buildings and structures. Specifications