ISA 71.01-1985
Environmental Conditions for Process Measurement & Control Systems : Temperature & Humidity
standard by The International Society of Automation, 04/01/1985
Full Description
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.