Damp heat test includes constant damp heat test and alternating damp heat test. High and low temperature alternating damp heat test is a necessary test item in aviation, automobile, household appliances, scientific research and other fields. It is used to test and determine the parameters and performance of electrical, electronic and other products and materials after high temperature, low temperature, alternating damp heat or constant test.
For example, the temperature difference between day and night, different humidity under different temperatures and different times, and the product passes through areas with different temperature and humidity during transportation. This alternating temperature and humidity environment will affect the performance and service life of products and accelerate the aging of products. If you are in this environment for a long time, the product needs to have sufficient resistance to alternating damp heat.
Method standard
Gb2423.22 environmental testing Part 2: Test methods Test N: temperature change
Gb2423.34 environmental testing of electric and electronic products Part 2: Test methods Test Z / AD: Combined temperature / Humidity Cycle Test
Gjbl50.9 environmental test method for military equipment damp heat test
Test parameters
Temperature, relative humidity, conversion time, alternating times.
