Mold growth test on ground radio navigation equipment

The mold growth test is to simulate an environment in the laboratory. This environment includes the types of mold spores that are common in the natural environment of the product, as well as the temperature and humidity environment suitable for spore growth, and the nutrients for mold growth are provided by the product.
After mold enters the interior of electronic products, the growing hyphae easily absorb water and form a "biological bridge", causing damage to electronic products, such as short-circuit burning of components, conductivity of insulation products, etc. The mold growth test of ground radio navigation equipment can determine its anti-mold performance.
Zhongke Testing Reliability Experiment Center has the ability to conduct environmental testing of various navigation equipment, and provides professional mold growth environmental testing services for ground radio navigation equipment.

Ground radio navigation equipment is an integral part of the radio navigation system.
Ground equipment can be divided into three parts: heading beacon, glide beacon, pointing beacon or range finder. When the rangefinder is part of an instrument landing system, it is usually mounted on the glide beacon.

Evaluate the degree and grade of mold growth: The degree of mold growth is identified and graded according to the following regulations.
Level 0: No mold growth can be observed at 50 times magnification.
Level 1: Mold cannot be seen with the naked eye, but it is very obvious when magnified 50 times.
Level 2: Mold growth is clearly visible to the naked eye, but the coverage area on the surface of the test sample is less than 25%.
Level 3: Mold is obviously growing, covering more than 25% of the surface of the test sample.

GB/T 12858-1991 Environmental requirements and test methods for terrestrial radio navigation equipment
DZ 0039.14-1992 Basic environmental test conditions and methods for geological instrument products Mold growth test
GB/T 2423.16-2008 Environmental testing of electrical and electronic products Part 2: Test methods Test J and guidelines: Mold growth
HB 6167.11-2014 Environmental conditions and test methods for airborne equipment of civil aircraft Part 11: Mold test
GB/T 12085.11-2022 Optics and photonics Environmental test methods Part 11: Mold growth
GB/T 32065.9-2019 Environmental test methods for marine instruments Part 9: Mold growth test
CB 1146.9-1996 Environmental Testing and Engineering Guidelines for Ship Equipment Mold
GJB150.10A-2009 Military equipment laboratory environmental test methods Part 10: Mold test