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Title: Novel Water Flow Facility In France Range Extension To Low Flow Rates (10 000 ml/h Down To 1 ml/h)
Author: Christopher David, Pierre Claudel
Source: Flomeko 2010
Year Published: 2010
Abstract: In order to extend the French water flow calibration range, LNE-CETIAT is on progress to build a new reference for flow rate measurements ranging from 10 l.h-1 down to 1 ml.h-1. This new facility based on a gravimetric principle (ISO 4185) will enable calibration with water temperature between 10C and 50C. Flow is regulated by the combined use of a tightly regulated upstream pressure (0,1 to 10 bar) and the use of capillaries under laminar flow. The expected relative uncertainty for the water flow rate is 0.1% with a coverage factor k 2 (95% confidence). The paper described the design and the ongoing implementation of this new calibration facility

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