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SSH 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)

Dec 29, 2025

General information

60.60     Dec 29, 2025

95.99   

DPS

DPS/KT 269

European Norm

75.060  

English  

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Scope

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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PUBLISHED
SSH EN ISO 20765-5:2022
60.60 Standard published
Dec 29, 2025

Related project

Adopted from EN ISO 20765-5:2022 IDENTICAL

Adopted from ISO 20765-5:2022 IDENTICAL