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Publication Citation: Results of a hydraulic pressure comparison in the range from 25 MPa to 200 MPa between NIS-Egypt and NIST-USA

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Author(s): Douglas A. Olson; Alaaeldin A. Eltawil; Shaker A. Gelany;
Title: Results of a hydraulic pressure comparison in the range from 25 MPa to 200 MPa between NIS-Egypt and NIST-USA
Published: February 28, 2012
Abstract: The results of an informal pressure comparison between the National Institute of Standards and Technology (NIST), USA, and the National Institute of Standards (NIS), Egypt, are presented. The comparison was aimed to determine degree of equivalence between NIST and NIS in the pressure range from 25 MPa to 200 MPa at a reference temperature of 20 °C. The comparison used a transfer standard (TS) which was a piston-cylinder assembly (PCA) of 4.9 mm2 nominal effective area. The results of the comparison show agreement between the laboratory results to within their claimed standard (k=1) uncertainties.
Citation: Journal of Metrology Society of India
Volume: 26
Pages: pp. 349 - 355
Keywords: degree of equivalence; hydraulic pressure, piston gauge; pressure comparison
Research Areas: Pressure & Vacuum, Pressure & Vacuum, Calibrations (Thermodynamic)
PDF version: PDF Document Click here to retrieve PDF version of paper (219KB)