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Title: Lost And Unaccounted For Gas
Author: A. P. Cox
Source: 1938 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1938
Abstract: jiHE DIFFERENCE between the amount of gas purchased at the city gate meter or meters and the amount of gas sold as reflected by a totalization of the consumers meters is commonly known as Unaccounted For Gas. This figure of Unaccounted For Gas is made up of two parts, Actual Leakage and Apparent Leakage. Apparent leakage is caused by metering Inaccuracies sometimes brought about by the effect of variables which are normally considered negligible, and sometimes brought about by the mechanical limitations of the installed metering equipment. These apparent leakage figures, if given serious study in the office, can in many cases be greatly reduced without large monetary expenditures. Actual leakage presents a much more seiious problem not only due to the cost of the gas which is being lost but also due to the hazard of a possible explosion produced by ignition of a combustible mixture which is a result of the leak,

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