Standard atmospheric condition:
Unless otherwise specified, the standard range of atmospheric conditions for making measurements and tests are as follows:
Ambient temperature: 5℃ to 35℃
Relative humidity: 45% to 85%
Air pressure: 85kPa to 106kPa
If there is any doubt about the results, measurements shall be made within the following limits:
Ambient temperature: 20±1℃
Relative humidity: 60% to 70%
Air pressure: 86kPa to 106kPa
Operating temperature range:一25℃ to 60℃
Humidity range: 85% RH MAX.