Detection Content

Detection Purpose: Check the corrosion resistance of material to atmosphere

Detection range: Testing electronics, electrical appliances, communications, instruments, vehicles, plastic products,

Principle of xenon lamp aging test


The xenon arc light filtered by the filter light is used for artificial weather aging or artificial exposure of the coating, the purpose of which is to make the coating undergo a certain exposure of radiant energy to produce a certain degree of change in the selected performance, or to make the coating reach a certain degree of exposure of radiant energy required for aging. The properties selected for testing should be important in the practical application of the coating. The performance of an exposed coating may be compared with that of an unexposed coating (comparison sample) of the same preparation.




In natural climates, solar radiation is considered to be the main cause of coating aging, and the principle of exposure to radiation under window glass is the same. Therefore, it is very important to simulate solar radiation for artificial weather aging and artificial exposure. Xenon arc radiation source changes its radiation spectral distribution through one of two different light filtration systems, respectively simulating the ultraviolet and visible spectral distribution of solar radiation, and simulating the ultraviolet and visible spectral distribution of light radiation filtered by 3mm thick window glass.


The power distribution of the two spectra describes the illumination value and allowable deviation of the light filtered by the filter in the ultraviolet range below 400nm. In addition, CIE no.85 has the illumination standard of the wavelength to 800nm (GB/T 1865-2009 appendix B), because xenon arc radiation is better able to simulate solar radiation only in this range.




Irradiance of exposure equipment may vary during testing due to xenon arc and filter aging. This change occurs especially in the ultraviolet range which has the greatest influence on the photochemistry of polymer materials. Therefore, it is necessary not only to measure the exposure time, but also to measure the wavelength range below 400nm or the exposure radiation energy at specified wavelength such as 340nm, and use these values as the reference values for coating aging.




It is impossible to accurately simulate the effects of various aspects of climate conditions on the coating, and therefore xenon lamp aging test chamber SC/SN simulation window glass filter solar radiation test is called artificial radiation exposure.