Thermal shock test

The thermal shock test, also known as the temperature shock test or the high and low temperature shock test, is used to assess the adaptability of the product to sudden changes in ambient temperature. It is an indispensable test in the appraisal test of equipment design and finalization and the routine test in the batch production stage. In some cases, it can also be used for environmental stress screening tests. It can be said that the frequency of application of the thermal shock test chamber in verifying and improving the environmental adaptability of the equipment is second only to vibration and high and low temperature tests.

Common implementation standards:

1. GJB 150-86 "Environmental Test Method for Military Equipment"

2. CB 2423 "Basic Environmental Test Regulations for Electrical and Electronic Products"

3. US military standard MIL-STD-810F "Environmental Engineering Considerations and Laboratory Tests"

The thermal shock test is to expose the test sample to low-temperature and high-temperature air (or suitable inert gas) alternately to subject it to rapid changes in temperature. Used to determine the ability of components, equipment and other products to withstand rapid changes in ambient temperature.

Reference standard: GB/T 2423.22; IEC 60068-2-14; EIA-364-32; MIL-STD-202