State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. Measurements of the flow and quantity of liquids and gases by differential pressure method. Determination of the correction factor for blunting of the leading edge of the aperture of a diaphragm. Replaces RD Uz 51-072-98, RD Uz 51-059-97
State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. The mass of crude oil and petroleum products. The measurement by indirect method of dynamic measurements