GOST 21276-75

Welding and allied process. Classification of geometric imperfections in metallic materials. Part 2. Welding with pressure

United power system and isolated power systems. Thermal power plants. Heat-power equipment. Pre-launch steam-oxy- gen cleaning, passivation and preservation of the steam-water tract. Norms and requirements

Petroleum products. Determination of foaming characteristics of lubricating oils

Ships heat exchangers. Cooling sea water temperature for designing

Radiation thickness gauges. General specifications

Occupational safety standards system. Feet personal protective means. Safety footwear. Technical requirements