Test ultraviolet test equipment meets the standard
 
★ ASTM G 154-00a accelerated aging test
 
★ GB/T16422.3-1997 Plastics laboratory light source exposure test method
 
★ ISO-4892, ASTM-D4587, D4799, SAE-J2020
 
Technical parameters of testing ultraviolet test equipment:
 
1. Temperature range: RT + 10 ℃ ~ 70 ℃;
 
2. Humidity range: ≥ 95% R.H;
 
3. Blackboard temperature: 40 ℃ ~ 65 ℃;
 
4. Distance between lamps: 70mm;;
 
5. Lamp power: 40W/each;
 
6. Ultraviolet wavelength: 290nm ~ 400nm;;
 
7. Test time: 1 ~ 9999s, m and h can be adjusted;
 
8. Support template: 150 × 75 (mm), about 40 pieces;
 
9. Irradiance can be adjusted: ≤ 0.33-0.77 w/m2;
 
10. Power supply requirements: AC220 (10%) V/50Hz single-phase three-wire system;
 
Simulation of ultraviolet (UV) and sunlight
 
Although ultraviolet light (UV) accounts for only 5% of sunlight, it is the main illumination factor that causes the durability of outdoor products to decline. This is because the photochemical reaction effect of sunlight increases with the decrease of wavelength. Therefore, when simulating the damage of sunlight to the physical properties of materials, it is not necessary to reproduce the whole sunlight spectrum. In most cases, it is only necessary to simulate short-wave UV light.
 
The reason why APE uses UV lamps is that they are more stable than other lamps and can better reproduce test results. It is a good method to use fluorescent UV lamp to simulate the influence of sunlight on physical properties, such as brightness decline, cracking, peeling and so on. There are several different UV lights to choose from. Most of these UV lamps mainly produce ultraviolet light, not visible light and infrared light. The main difference between lamps is the difference in the total UV energy they produce in their respective wavelength ranges. Different lights will produce different test results. The actual exposure application environment can indicate which type of UV lamp should be selected. ? The advantages of fluorescent lamps are: obtaining test results quickly; Simplified illumination control; Stable spectrum; With minimal maintenance; The price is cheap and the operating cost is reasonable.