Wet Heat Testing of Airborne Equipment

The hot and humid environment may cause aircraft onboard equipment to corrode and absorb moisture, causing changes in equipment performance. The purpose of the hygrothermal test of aircraft airborne equipment is to determine the ability of the equipment to withstand natural or induced humid atmosphere.
Zhongke Testing Reliability Experiment Center has the environmental testing capabilities for various aircraft airborne equipment, and provides professional environmental testing services such as heat and humidity testing, sand and dust testing, mold testing, and salt spray testing for aircraft airborne equipment.

Category A - Equipment subjected to standard hot and humid environment Standard hot and humid environment is often used as the corresponding test environment for equipment installed in the environmental control cabins of civil aircraft, non-civilian transport aircraft and other types of aircraft. Harsh hot and humid environments are not typically encountered in the environmentally controlled cabins of these aircraft.
Category B - Equipment subjected to harsh hot and humid environments. Equipment installed in non-environmentally controlled areas can work under more severe humid atmospheric environmental conditions, and the working time exceeds the time specified in the standard hot and humid environment test.
Category C - Equipment subjected to external hot and humid environment. The equipment is required to work in direct contact with the outside air, and its working time exceeds the time specified in the standard hot and humid environment.

HB 6167.4-2014 Environmental conditions and test methods for airborne equipment of civil aircraft Part 4: Damp heat test
HB 6167.1-2014 Environmental conditions and test methods for airborne equipment of civil aircraft Part 1: General provisions
GB/T 4937.4-2012 Mechanical and climatic test methods for semiconductor devices Part 4: Highly accelerated steady-state hot and humid test (HAST)
GB/T 2424.2-2005 Environmental testing of electrical and electronic products - Guidelines for damp and heat testing
GB/T 2423.3-2006 Environmental Testing of Electrical and Electronic Products Part 2 Experimental Method Test Cab: Constant Moisture and Heat Test
GB/T 2423.4-2008 Environmental Testing of Electrical and Electronic Products Part 2 Test Method Test Db: Alternating Humid Heat (12h+12h Cycle)
IEC60068-2-30-2005 Environmental Test Part 2-30: Test Test Db: Cyclic Damp Heat Test (12h+12h cycle)