The UV weathering test equipment is another photo-aging test device that simulates light, which mainly simulates ultraviolet light in sunlight. It also reproduces the damage caused by rain and dew. The equipment is tested by exposing the material to be tested to a controlled cycle of sunlight and moisture while increasing the temperature. The device uses UV fluorescent light to simulate sunlight, while also condensing or spraying to simulate moisture effects.
UVA-340, a good choice for simulating the sun's ultraviolet rays
UVA-340 is an excellent simulation of the solar spectrum in the critical short-wavelength range, which is a spectrum with a wavelength range of 295-360 nm. UVA-340 only produces a spectrum of UV wavelengths that can be found in sunlight.
UVB-313, used for a large degree of accelerated test
UVB-313 can quickly provide test results. The short-wave UV they use is more intense than the UV light waves currently found on Earth. Although these UV light, which is much shorter than the natural wavelength, can greatly accelerate the test, it also causes discrepancies and actual degradation damage to certain materials.
The standard defines a fluorescent UV lamp that emits light energy below 300 nm below 2% of the total output light energy, commonly referred to as a UV-A lamp; a fluorescent UV lamp that emits light energy below 300 nm greater than 10% of the total output light energy. , commonly referred to as UV-B lamps;
UV-specific UV-A wavelength range is 315-400nm; UV-B wavelength range is 280-315nm
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