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EVS-EN ISO 20765-5:2022

Natural gas - Calculation of thermodynamic properties - Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent (ISO 20765-5:2022)

General information

Valid from 17.05.2022
Base Documents
ISO 20765-5:2022; EN ISO 20765-5:2022
Directives or regulations
None

Standard history

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This document specifies methods to calculate (dynamic) viscosity, Joule-Thomson coefficient, isentropic exponent, and speed of sound, excluding density, for use in the metering of natural gas flow.

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