GOST 11501-1978 Petroleum bitumens. Method for determination of depth of needle penetration
GOST 11505-1975 Petroleum bitumens. Method for determination of ductility
GOST 12.0.004-1990 Occupational safety standards system. Organization of training for labour safety. General rules
GOST 12.1.004-1991 Occupational safety standards system. Fire safety. General requirements
GOST 12.1.007-1976 Occupational safety standards system. Noxious substances. Classification and general safety requirements
GOST 12.1.044-1989 Occupational safety standards system. Fire and explosion hazard of substances and materials. Nomenclature of indices and methods of their determination