GOST 8.361-1979 State system for ensuring the uniformity of measurements. Technique of measuring by the velocity at a single point of a pipe cross-section
GOST 8.586.5-2005 State system for ensuring the uniformity of measurements. Measurements of liquids and gases flow rate and quantity by means of orifice instruments. Part 5. Measurement procedure
GOST R 51069-1997 Crude petroleum and petroleum products. Determination of density, relative density and API gravity. Hydrometer method
GOST R 51233-1998 State system for the uniformity of measurements. Standard platinum resistance thermometers of the first and second grades. General requirements