The American School of Gas Measurement Technology (ASGMT) has been at the forefront of flow measurement training since its inception in 1966. Over the years, ASGMT has evolved to encompass comprehensive training in measuring fluids in both gas and liquid states. With a commitment to excellence, ASGMT now offers an extensive curriculum comprising over 120 lecture classes, complemented by 54 Hands-On Product Training sessions led by industry experts, and sessions providing a brief overview of new products.

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September 15th – 18th, 2025

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  • September 14th – 17th 2026
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May 19, 2017

  • AUTHOR: David Courtney

Fundamentals of Orifice Metering The history of orifice metering began in the early 1900’s. The first test data was done by the U.S. Geological Survey and in 1913 the first “Handbook of Natural Gas” was published. So, as you can tell, orifice metering has been around for over 100 years and in that time, much has been learned and…

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May 19, 2017

  • AUTHOR: Steve Whitman

FUNDAMENTALS OF NATURAL GAS CHEMISTRY In order to understand the chemistry of natural gas, it is important to be familiar with some basic concepts of general chemistry. Here are some definitions you should know:

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May 19, 2017

  • AUTHOR: Dan Hackett

FUNDAMENTALS OF MULTIPATH ULTRASONIC FLOW METERS FOR LIQUID MEASUREMENT The use of Liquid Ultrasonic Meters for liquid petroleum applications such as custody transfer or allocation measurement is gaining worldwide acceptance by the Oil Industry. Ultrasonic technology is well established but the use of this technology for custody transfer and allocation measurement is relatively new. Often users try to employ the same measurement practices that…

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May 19, 2017

  • AUTHOR: Dan Hackett

Fundamentals of Multipath Ultrasonic flow meters for Gas Measurement This paper discusses fundamental principles of ultrasonic gas flow meters used for measurement of natural gas. A review of an ultrasonic meter’s operation and the equations used to determine actual volumetric flow is presented. The ultrasonic flow meter’s diagnostic capability will also be briefly presented. Further, diagnostic data, in conjunction with gas composition, pressure and…

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May 19, 2017

  • AUTHOR: Paul Honchar

FUNDAMENTALS OF GAS TURBINE METERS The majority of all gas measurement used in the world today is performed by two basic types of meters, positive displacement and inferential. Positive displacement meters, consisting mainly of diaphragm and rotary style devices, generally account for lower volume measurement. Orifice, ultrasonic and turbine meters are the three main inferential class meters used for large…

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May 19, 2017

  • AUTHOR: John Chisholm

FUNDAMENTALS OF GAS LAWS In the gas industry a standard unit of measure is required. In the English system it is the standard cubic foot. In the metric, it is the standard cubic meter. This standard unit is the basis of all exchange in the gas industry. When the unit of purchase is the energy content (BTU) we achieve…

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May 19, 2017

  • AUTHOR: J. David Hailey

FUNDAMENTALS OF ENERGY DETERMINATION This paper presents fundamental information necessary to understand and appreciate the concept of total gas energy in a natural gas pipeline. That is, to be able to converse with peers within the natural gas industry and understand basic concepts and terminology. Discussed is the historical transition from volumetric measurement to total gas energy including some…

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May 19, 2017

  • AUTHOR: Jim Griffeth

FUNDAMENTALS OF ELECTRONIC FLOW METER DESIGN, APPLICATION & IMPLEMENTATION Electronic flow measurement as applied to the natural gas industry has advanced considerably over the last 30 years. Applications to address Upstream, Midstream and Downstream gas measurement technologies have become more complex. Over time it has become necessary to understand the fundaments that make up this ever changing environment. This paper will discuss the important…

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May 19, 2017

  • AUTHOR: Julie Ellington

FUNDAMENTALS OF DIAPHRAGM DISPLACEMENT METERS Natural gas measurement is the vertebrae of any natural gas utility. Without the ability to measure, it would be impossible to account for the flow of gas from receipt to delivery. Very much like an accountant that labors to keep the ledger balanced, a utility needs metering to balance the gas producer’s receipts against the…

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ASGMT is dedicated to training, education, and creating a better future through the people who learn from us. As the largest gas measurement school in the United States, we are devoted to natural gas measurement, pressure regulation, flow control, and other measurement related arenas.

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