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Title: Fundamentals Of Orifice Metering
Author: Jerry Paul Smith
Source: 1982 Appalachian Gas Measurement Short Course
Year Published: 1982
Abstract: The orifice is one of the oldest known devices for measuring or regulating the flow of fluids. The Romans are credited with using it to regulate the flow of water to householders. However, the development of the orifice or orifice meter on which the purchaseof fluids may be based, took place in the early 1900s. According tothe Report of the Joint A.G. A.-A.S.M.E. Orifice Coefficient Committee dated November 1935, there were numerous research projects conducted on the flow of fluids through orifices during the nineteenth century. Just when and where a thin-plate orifice was first used in the measurement of fluids, particularly for sale purposes, has not been definitely determined, but it was probably before 1890. It was about this time that Mr. Forrest M. Towl witnessed orifice meters being used for measuring natural gas In the vicinity of Columbus, Ohio. These particular orifices had been installed and were being used at the suggestion of the late Professor S. W. Robinson of Ohio State University. In the early 1900s much work was done to develop the use of the orifice as a custody transfer device. In May 1924, the Board of Directorsof the Natural Gas Association directed its Main Technical and Research Committee to establish a new sub-committee to be known as the Gas Measurement Committee.

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