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CEN/TC 238 N412 Adoption of a New Work Item ISO/CD 20765-5 “Natural gas - Calculation of thermodynamic properties - Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent”

Scope

A method to calculate viscosity and other properties, excluding density, for use in the metering of natural gas flow

Purpose

To provide simplified methods for the calculations required, according to ISO-5167, to measure flow of high-pressure natural gas with an orifice plate meter

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Please email further comments to: debbie.stead@bsigroup.com

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