State system for ensuring the uniformity of measurements of the Republic of Uzbekistan. Reference materials. General and statistical principles for certification (attestation). Replaces O’z DSt 2964:2015 (ISO Guide 35:2006 MOD)
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