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Title: An Uncertainty Analysis For A Positive Displacement Liquid Flow Calibrator Using The Water Draw Technique
Author: Wesley B. England
Source: 2011 Measurement Science Conference
Year Published: 2011
Abstract: This paper is an uncertainty analysis performed by the Liquid Flow Lab of the Army Primary Standards Laboratory (APSL) for the calibration of positive displacement piston prover using a volumetric water draw. The water draw calibration is conducted to establish a precise relationship between translator pulses and the volume of liquid displaced by the draw and is known as the KFactor (given in pulses/unit volume). For the APSL the term Water Draw is a misnomer, because the APSL uses hydrocarbons that are already in the flow calibrator at the time of the draw calibration

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