Following our previous discussion on the effects of high-temperature environmental testing, this paper systematically summarizes the typical property changes that occur in test specimens within low-temperature test chambers (hereinafter referred to as “the equipment”).
When maintaining cold and hot shock test chambers, paying attention to details is crucial. A minor oversight can significantly impact the effectiveness of the tests. Therefore, it is essential to prioritize the regular maintenance of testing equipment. Today, let's go over a few key aspects of maintaining test chambers.
Temperature is the most fundamental—and most brutal—physical parameter influencing the reliability of materials, components and complete systems. GB/T 2423.1, GB/T 2423.2, GJB 150.3A, GJB 150.4A, DO-160 Section 4/5, IEC 60068-2-1/-2 and MIL-STD-810H all quantify requirements for temperature slew rate, dwell time, heat load and measurement uncertainty.
When conducting tests with a sand and dust test chamber, there are primarily three processes involved. Some clients may not be familiar with these processes during initial consultations. Today, we will introduce these three processes and their corresponding temperature and humidity requirements.
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