BS 1042-1.3:1991被替代
Measurement Of Fluid Flow In Closed Circuits - Pressure Differential Devices - Method Of Measurement Of Gas Flow By Means Of Critical Flow Venturi Nozzles
出版：British Standards Institution
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Describes the geometry and method of use of critical flow Venturi nozzles used to determine the mass flow-rate of a gas flowing through a system. It gives the information necessary for calculating the flow-rate and its associated uncertainty. Applies to Venture nozzles in which the gas flow accelerates to the critical velocity at the throat. Applicable only where there is steady flow of single-phase gases. It deals with Venturi nozzles for which direct calibration experiments have been made in sufficient number and quantity to enable inherent systems of application to be based on their results. BS AMD 8878 RENUMBERS THIS STANDARD
? British Standards Institution 2013
Renumbered and superseded by BS EN ISO 9300
Supersedes 89/20802 DC
(09/2005)
ISO 9300:2005 - Identical
