State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. The procedure of internal and external control of the arbitration quantitative chemical analysis of products containing precious metals
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