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Title: Wide Range And Controlled Measurement
Author: A. F. Benson
Source: 1944 Southwestern Gas Measurement Short Course (Now called ISHM)
Year Published: 1944
Abstract: The ordinary orifice metei will measure accurately, a maximum rate of flow which is 3a times the minimum rate of flow. Tills is due to the fact that the accuracy with which the chart may be read in its low range precludes the possibility of a greater range from any one meter, For example, take a 100 meter. It is desired to maintain an accuracy of measurement of 2% or less, A 100 meter chart may be read to within 0.4, As a result, the lowest accurate reading obtainable from same would be 8 of water. The square root of 8 is 2.B3, The square root of 100 is 10, 10 H- 2,83 Sli,

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