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Title: Field Problems Associated With Orifice Measurement
Author: William H. Isner
Source: 1966 Appalachian Gas Measurement Short Course
Year Published: 1966
Abstract: The problem of meter accuracy and performance is one of prime interest to both management and field meastirement men. This subject has been discussed at great length and for many years whenever and wherever gas men gather and we all have developed ideas concerning (he subject. For measurement involving purchase, storage and sale of large volumes of natural gas the Charleston Group Companies of the Columbia Gas System use orifice meters, following the recommendations of AGA Gas Measurement Committee Report #3, covering sharp, square edge, thin-plate concentric orifices using flange taps. It is the responsibility of the design engineer and the field man directly involved to adhere to these proceduies and assure thai physical construction of both primary and secondary elements conform to specifications and all variables kept within tolerance so that published flow factors can be used with assurance that results obtained will be accurate.

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