ISO 20765-5:2022

Apply For Services

Natural gas — Calculation of thermodynamic properties — Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent

ISO 20765-5:2022 is an international standard that specifies methods for calculating the viscosity, Joule-Thomson coefficient, and isentropic exponent of natural gas, primarily used for accurate metering of natural gas flow during its transportation and distribution; essentially, it provides a standardized way to determine key thermodynamic properties of natural gas for flow measurement purposes.