GOST 19674-74

State system for ensuring the uniformity of measurements. Measurement of liquids and gases flow rate and quantity by differential pressure method. Orifice plates, nozzles ISA 1932 and Venturi tubes inserted in circular cross-section filled conduits. Specifications

Brown coals, hard coals and anthracite. Method for determination of abrasive coefficient of ash

Metal-cutting, diamond, wood-cutting and fitter`s tools. Packing, marking, transportation fitter and auxiliary

X-ray devices. The method of measuring of spectral structure and relative spectrum contamination

Fuel cell technologies. Part 4-101. Fuel cell power systems for propulsion other than road vehicles and auxiliary power units (APU). Safety of electrically powered industrial trucks

Thrust rings for tube connections on internal cone. Construction and dimensions