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
Carbonaceous materials used in the production of aluminium. Baked anodes and cathode blocks. Part 2. Determination of apparent density and of open porosity using hydrostatic method
Direct acting indicating analogue electrical measuring instruments and their accessories. Part 5. Special requirements for phase meters, power factor meters and synchroscopes
