The American School of Gas Measurement Technology (ASGMT) has never turned its back on change since its founding in 1966. Instead, it has consistently embraced progress and pursued new ways to strengthen our industry and support the development of our students. This year is no exception. After 25 years at our previous venue, ASGMT has proudly relocated to The Woodlands Waterway Marriott Hotel and Conference Center. This move underscores our continued commitment to remaining at the forefront of industry evolution and delivering the highest‑quality experience for our students and the broader measurement community.

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August 31st – September 3rd, 2026

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Thank you for attending the school this year! We can’t wait to see you at our new Marriott Waterway location in The Woodlands next year!

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  • September 13th – 16th, 2027
  • September 11th – 14th, 2028
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A REVIEW OF THE REVISIONS TO API 14.3 / AGA 3 – PART 2

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January 12, 2006

  • AUTHOR: Tom Cathey

A REVIEW OF THE REVISIONS TO API 14.3 / AGA 3 – PART 2

In April of 2003, revisions to the specification and installation requirements for orifice meters was published by the American Gas Association in the form of the AGA Report No. 3 – Part 2, Fourth Edition. The revisions or changes in the following categories are significant when compared to the 1991 Third Edition publication of AGA Report No. 3 and will be discussed in greater detail throughout this paper:

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