United information accounting system of gas-cylinder equipment on motor vehicles "SMARTPATRUL" with use of plastic electronic cards"SMARD-CARD". Requirements for organization and functioning
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