Project Introduction

Damp heat test includes constant damp heat test and alternating damp heat test. The high and low temperature alternating humid heat test is an essential test item in the fields of aviation, automobiles, home appliances, scientific research, etc. It is used to test and determine the temperature environment of electrical, electronic and other products and materials for high temperature, low temperature, alternating humid heat or constant test The changed parameters and performance.

For example: the temperature difference between day and night, different humidity at different temperatures and different times, the product passes through regions with different temperatures and humidity during transportation. This alternating temperature and humidity environment will affect the performance and life of the product and accelerate the aging of the product. If you are in this environment for a long time, the product needs to have sufficient resistance to alternating heat and humidity.

Method Standard

GB2423.22 Environmental test Part 2: Test method Test N: Temperature change

GB2423.34 Environmental Test for Electrical and Electronic Products Part 2: Test Method Test Z/AD: Temperature/Humidity Combined Cycle Test

GJBl50.9 Military equipment environmental test method Damp heat test

Test parameters

Temperature, relative humidity, conversion time, and number of alternations.