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Title: A Study Of The Repeatability And Reproducibility Of The Critical Flow Venturi
Author: Thomas Kegel
Source: 1999 International Symposium on Fluid Flow Measurement
Year Published: 1999
Abstract: The critical flow venturi (CFV) has long been recognized as a high quality gas flow calibration artifact. A program is underway to compile data to be used in determining the intrinsic repeatability and reproducibility of a CFV. This paper describes the initial results of the program, it is divided into three parts. First, primary calibration data from a single CFV are tracked over a 30 year period. Second, results of a test program are presented with the objective of classifying short and long term random effects. Third, results from two test programs are presented with the objective of identifying the source of random effects.


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