GOST 12815-1980 Flanges for valves, fittings and pipelines for Pnom from 0,1 to 20 MPa (from 1 to 200kgf/sq sm). Types. Connecting dimensions and dimensions of sealing surfaces
GOST 14254-1996 Degrees of protection provided by enclosures (IP code)
GOST 3262-1975 Water-supply and gas-supply steel pipes. Specifications
GOST 6211-1981 Conical pipe thread. Profile, basic dimensions and tolerances
GOST 6357-1981 Basic norms of interchangeability. Pipe cylindrical thread
GOST 9.030-1974 Unified system of corrosion and ageing protection. Vulcanized rubbers. Method of testing resistance to attack by corrosive media in limp state
GOST IEC 730-1-1995 Automatic electrical controls for household and similar use. General requirements and test methods
GOST R IEC 335-1-1994 Safety of household and similar electrical appliances. General requirements and test methods
GOST R IEC 730-1-1994 Automatic electrical controls for household and similar use. General requirements and test methods
GOST R EN 257-2004 history
2004GOST R EN 257-2004 Mechanical thermostats (thermoregulators) for gas appliances. General technical requirements and test methods