RTCA DO-160 – Section 6.0 – Humidity
This test determines the ability of the equipment to withstand either natural or induced humid atmospheres. The main adverse effects to be anticipated are:
Change of equipment characteristics resulting from the absorption of humidity.
Electrical (conductors and insulators)
Chemical (hygroscopic elements)
Category A – Standard Humidity Environment
Category B – Severe Humidity Environment
Category C – External Humidity Environment
DO-160 is a standard for environmental test on avionics equipment published by RTCA, the Radio Technical Commission for Aeronautics. The DO 160 G was amended and now all guideline inside it are replaced by the DO 357.