IEC 60068-2-39:2015 provides a description of test methods and guidance for testing of equipment or components under combined temperature or temperature and humidity with low air pressure tests.
This second edition cancels and replaces the first edition published in 1976 and constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) preferred severities of the IEC 60068 series;
b) combined temperature, humidity and low air pressure.
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