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Title: Low Pressure Verification Of Gas Ultrasonic Flow Meters As An Efficient Solution To The Metrological Confirmation Process Suggested In ISO 10012
Author: Henry Abril Jose A. Fuentes Jorge Reyes Juan m. Ortiz John F. Velosa
Source: Flomeko 2013
Year Published: 2013
Abstract: The metrological confirmation process applied to gas ultrasonic flow meters, according to the terms specified by the technical standard ISO 10012, represents a high challenge for natural gas transmission companies which, as TGI, are interested in establishing a Measurement Management System based on such standard. In this paper, a metrological control proposal is described for exclusive application to ultrasonic flow meters (USMs) operating at low (atmospheric) pressures. This is based on tests performed on 2 new flow meters DN150 (6) which were calibrated at first in PIGSAR (Germany) using natural gas at high pressure, as test fluid, and later characterized by air at atmospheric pressure in CDT de GAS (Colombia

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