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API MPMS 21.1

2nd Edition, February 1, 2013

Complete Document

Manual of Petroleum Measurement Standards Chapter 21.1 - Flow Measurement Using Electronic Metering Systems - Electronic Gas Measurement



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H210102
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Referenced Items:

AGA REPORT #5
AGA REPORT #7
AGA REPORT #8
NFPA 70

Product Details:

  • Revision: 2nd Edition, February 1, 2013
  • Published Date: February 2013
  • Status: Active, Most Current
  • Document Language: English
  • Published By: American Petroleum Institute (API)
  • Page Count: 104
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

This standard describes the minimum specifications for electronic gas measurement systems used in the measurement and recording of flow parameters of gaseous phase hydrocarbon and other related fluids for custody transfer applications utilizing industry recognized primary measurement devices.

Electronic gas measurement (EGM) systems may be comprised of a number of components which work together to measure and record gas flow as shown in Figure 1. The components contained in the cloud are considered part of the EGM system. The components may be considered individually or be integral parts of the EGM system and the calculations may be performed onsite and/or off-site.

This standard provides the minimum reporting and change management requirements of the various intelligent components required for accurate and auditable measurement. The requirements can be met by a combination of electronically and/or manually recorded configuration, test reports, change record reporting of the electronic gas measurement system components and flow parameters. It is recognized that diagnostic capabilities of the newer meter and transmitter technologies are important but due to the device specific complexity, intelligent device diagnostics are out of scope for this standard.