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Title: Gas Flow Transfer Standard Procurement Of Usaf Correlation Standard
Author: D.S. Madden
Source: 1999 International Symposium on Fluid Flow Measurement
Year Published: 1999
Abstract: The United States Air Force Metrology and Calibration Program has recently procured a sonic nozzle/venturi Gas Flow Transfer Standard (GFTS) for use as a correlation standard. The purpose of the correlation standard is to verify the specifications of gas flow primary standards at Air Force Precision Measurement & Equipment Laboratories (PMELs). The GFTS will be sent to individual PMELs for dynamic testing of bell provers, piston provers, and other gas flow measurement standards. The paper discusses the specific features of the GFTS hardware and software. The initial calibration data from the National Institute of Standards & Technology (NIST) is presented. Plans for deployment and operation in a remote calibration mode are discussed. The paper will provide a basic overview of the USAF correlation-testing concept for gas flow measurement standards. The intended audience consists of individuals who are considering the addition of a correlation method to their current support of gas flow measurement standards. The correlation method can reveal errors that are not detectable with a fundamental unit calibration.

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