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Title: Calculation Of Meter Charts
Author: H. L. Morris
Source: 1966 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1966
Abstract: The calculation of orifice meter charts is the process of interpreting and converting measured values of differential pressure (in inches of water) and static pressure (in pounds per square inch absolute), recorded usually on circular charts, into cubic feet of gas at the contract pressure base. The calculation of pressure and volume charts removed from positive displacement meters is the process of converting cubic feet, measured and registered by a counter or index at a pressure in excess of the contract pressure base, to cubic feet of gas at the contract pressure base. These functions usually are performed by the Measurement Department or the Gas Accounting Department depending upon the organization of the company.

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