AGA 8《天然气和相关气体的热力学性质》第1部分《详细和总体状态方程》2017年修订版第3版使用了与AGA 8 1994年第2版相同的状态方程，但天然气成分和操作条件的边界已被修改，以达到所需的不确定性水平。

This revised 3rdedition, 2017, of AGA 8,Thermodynamic Properties of Natural Gas and Related Gases, Part 1,DETAIL and GROSS Equations of State, uses the same equations of state as in the 2ndedition, 1994, of AGA 8, with the exception that the boundaries of natural gas composition and operating conditions have been modified to achieve the desired level of uncertainty.