Abstract / 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.
ISO 20765-5:2022Published
Natural gas — Calculation of thermodynamic properties — Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent
Gaz naturel — Calcul des propriétés thermodynamiques — Partie 5: Calcul de la viscosité, du coefficient de Joule-Thomson et de l'exposant isentropique