
ENVIRONMENTAL TESTING - BACKGROUND INFORMATION - TESTS A (COLD) AND TESTS B (DRY HEAT)
出版:British Standards Institution

专家解读视频
Certain equipment is used or stored under high or low temperature conditions only for periods shorter than the time for achieving temperature stability. A test of such equipment, according to Tests A and B where the duration of the test is counted from the time at which the specimen has reached temperature stability, may then overstress the equipment.
IEC 60068-3-1 : 2.0 - Identical