以前是S71。01-1985. 为工业过程测量和控制系统建立温度和湿度条件的统一分类。本标准中规定的温度和湿度条件等级适用于与过程仪表相关的活动，包括设计、制造、销售、安装、测试、使用和维护。本标准与IEC出版物654-11979《工业过程测量和控制设备的操作条件第1部分:温度、湿度和大气压》兼容。

Formerly S71.01-1985. Establishes uniform classifications of temperature and humidity conditions for industrial process measurement and control systems. The classes of temperature and humidity conditions stated in this standard are suitable for use in activities related to process instrumentation, including design, manufacturing, sales, installation, test, use, and maintenance. The standard is compatible with IEC Publication 654-1, 1979, Operating Conditions for Industrial Process Measurement and Control Equipment, Part 1: Temperature, Humidity, and Barometric Pressure.