ISO 5167-3:2003 is applicable to nozzles and Venturi nozzles in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. In addition, each of the devices can only be used within specified limits of pipe size and Reynolds number. It is not applicable to the measurement of pulsating flow. It does not cover the use of nozzles and Venturi nozzles in pipe sizes less than 50 mm or more than 630 mm, or for pipe Reynolds numbers below 10000.
BS 1042-1-1.2 standard specifies the measurement of fluid flow in closed conduits. Pressure differential devices. Specification for square-edged orifice plates and nozzles (with drain holes, in pipes below 50 mm diameter, as inlet and outlet devices) and other orifice plates.
R W Miller Flow Measurement Engineering Handbooktorrent
This Standard does not pipe or conduit sizes under 50 mm (2 in.) nominal.This Standard does not apply to ASME Performance Test Code measurements.The Standard is applicable to measurement of flow of any fluid, (liquid, vapor, or gas). 2ff7e9595c
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