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Title: Testing Large Capacity Displacernent Meters With Low Pressure Flow Prover Or Critical Flow Orifice Prover
Author: Fred Hickel
Source: 1939 Appalachian Gas Measurement Short Course
Year Published: 1939
Abstract: Various types of equipment and a number of different methods have been used in the testing of displacement meters. The bell-type prover has been used almost universally to test low-pressure small capacity displacement meters and it has also been used, to some extent, for the testing of low-pressure large capacity displacement meters. Some low-pressure, and practically all high-pressure, large capacity displacement meters were tested in former years by use of the funnel-prover, and in more recent years, by the low-pressure flow prover, or the critical flow orifice prover. The use and operation of these last two mentioned provers will be discussed in this paper.

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