Tittelstandard For Calibration Of Gas Flow Meters . Beskrivelse: Justervesenet Needs A Standard For Calibration Of Gas Flow Meters. The Calibration System Will Be Used With Gases Such As Hydrogen, Natural Gas, Methane, Various Hydrogen-Methane Mixtures, And Nitrogen. The System Must Be Operating With A Pressure Range Of At Least 0 - 60 Barg And With Flowrates Of At Least 1 - 100 Sm3/H. A Design Could Be A Primary Standard Based On The Measurements Of Pressure, Volume, Temperature, And Time – Pvtt. An Example Of A Pvtt System Design Is Included In Annex 2+3 , Collected Volumes Will Be Typically Up To 850 Litres. Justervesenet Is Open To Other Primary Or Secondary Standard Designs.
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