API MPMS Chapter 22.5 First Edition PDF
This standard supersedes MPMS Chapter 5.7 and defines the testing and reporting protocols for flow measurement devices based on the detection of a pressure differential that is created by the device in a flowing stream. This protocol is designed to supply industry with a comparable description of the capabilities of these devices for the measurement of single-phase fluid flow when they are used under similar operating conditions. The objectives of this testing protocol are to:
- Ensure that the user of any differential pressure flow meter knows the performance characteristics of the meter over a range of Reynolds numbers as applicable or defined by tests.
- Facilitate both the understanding and the introduction of new technologies.
- Provide a standardized vehicle for validating manufacturer’s performance specifications.
- Provide information about relative performance characteristics of the primary elements of the differential pressure metering devices under standardized testing protocol.
- Quantify the uncertainty of these devices and define the operating and installation conditions for which the stated uncertainties apply.
