标准25建立了获取性能数据的统一测试方法，列出并定义了测试中使用的术语，规定了要记录的数据和计算中使用的公式，并设定了测试中的限制和公差。2018年版ASHRAE标准25包含了技术修订，包括滑动制冷剂的新要求，并包括在线访问支持文件，以计算温度滑动对平均蒸发温度的影响。

Standard 25 establishes uniform methods of testing for obtaining performance data, lists and defines the terms used in testing, specifies data to be recorded and formulas to be used in calculations, and sets limits and tolerances in testing.The 2018 edition of ASHRAE Standard 25 incorporates technical revisions, including new requirements for glide refrigerants, and includes online access to supporting files for calculating the effect of temperature glide onto the average evaporation temperature.