State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. General metrological requirements for the number of prepackaged products of any type and order of the state metrological control and supervision of their compliance
State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. Measuring the flow and quantity of liquids and gases by differential pressure method. Allowance for change in the inner diameter of the measuring pipe during gas flow rate measurement. Replaces RD Uz 51-059-97
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