The purpose is to provide users and suppliers with a uniform listing of the selected environmental conditions to which equipment may be exposed in specified locations. Lists environmental climatic conditions, e.g. air temperature, humidity and air pressu
IEC 60654-1:1993 history
1993IEC 60654-1:1993 Industrial-process measurement and control equipment; operating conditions; part 1: climatic conditions
1970IEC 60654-1:1979 Operating conditions for industrial-process measurement and control equipment - Part 1: Temperature, humidity and barometric pressure