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Title: API Mpms Chapter 22.2 - Verification And Testing Protocol For Differential Flow Meters
Author: Eric Reid, Russell Burkey, Eric Kelner
Source: 2006 International School of Hydrocarbon Measurement
Year Published: 2006
Abstract: In 2003, a standard entitled Differential Pressure Flow Measurement Devices, which defined a testing and reporting protocol for flow meters that produce a change in velocity by creating a differential pressure, was developed by the American Petroleum Institute (API) Manual of Petroleum Measurement Standards (MPMS) Chapter 5.7 Working Group. The intent was to provide industry with a standardized testing and reporting procedure that could be used to compare the relative performance of these meters. In 2005, the standard was revised and moved to Chapter 22.2 of the MPMS. In essence, the standard requires the meter to be tested by a qualified test laboratory under various flowing conditions ranging from undisturbed flow (i.e., a fully-developed velocity profile) to severely disturbed (i.e., swirling) flow. The standard also specifies a general report format and requirements for estimating the measurement uncertainty of the test results. The testing protocol is limited to meters used for single-phase Newtonian fluid applications, such as natural gas flows.

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