标准摘要
[中文适用范围]： 本文件规定了天然气流量计量中使用的（动态）粘度、焦耳-汤姆逊系数、等熵指数和声速（不包括密度）的计算方法。 [外文原描述]： 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.
英文名称Natural gas — Calculation of thermodynamic properties — Part 5: Calculation of viscosity, Joule-Thomson coefficient, and isentropic exponent