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Title: Uncertainty Analysis Of A Volumetric Primary Standard
Author: Thomas Kegel
Source: 2002 International Symposium on Fluid Flow Measurement
Year Published: 2002
Abstract: In 1969 CEESI began operation of a volumetric primary calibration system for use with compressible fluids. Efforts are underway to expand the existing uncertainty analysis based on new data and a review of the original results. Four issues involved with that uncertainty analysis are discussed in some detail in this paper. The first consists of a more rigorous analysis of the original volume determination process. Second, the newest dry air equation of state is applied to the limited pressure and temperature range. The third subject is a model of the diverter valve used to begin and end the calibration process. Finally, the unique aspects of propagating uncertainty components associated with density are considered.

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