GOST 13979.3-68

Unified system of technological documentation. Rules for writing down operations and manufacturing steps. Welding

Agriculture and forestry interchangeable towed and semi-mounted equipment, tractor-drawn trailers and semi-trailers. Mechanical coupling devices. General technical requirements

Porcelain ware. Specifications

Plain bearings. Wrapped bushes. Part 2. Test data for outside and inside diameters

Heating boilers. Part 4. Heating boilers with forced draught burners. Special requirements for boilers with forced draught oil burners with output up to 70 kW and maximum operating pressure of 3 bar. Terminology, special requirements, test methods and marking

State system for ensuring the uniformity of measurements. Current transformers. Verification procedure