BGD 855 & 856 UV Light Accelerated Aging Test Chamber （hereinafter referred as BUV）adopts fluorescent UV lamp as the light source. Its inner temperature and humidity can be properly controlled to obtain the periodic condensation on the sample for fully evaluating the damaged factor caused by sunlight, moisture and temperature (materials aging phenomenon includes fading, disluster, intensity reduction, cracking, flaking, chalking, and oxidation). Fluorescent UV light can emulate the effect of sunshine, while condensation and water spray system can emulate the effects of rain and dew. During the test, radiation energy and temperature are controllable. A typical test cycle generally carries out under strong irradiation of UV light or in the dark and wet condensation period with 100% relative humidity. These tests generally applied in the fields of paint and coatings, automotive industry, plastic, wood, glue, etc… Test Methods & Material Standards

◆ISO 11507《Paints and varnished-Exposure of coatings to artificial weathering- Exposure to fluorescent UV lamps and water》

◆ ISO 4892-1《 Plastics-Methods of exposure to laboratory light sources-Part 1: General Guidance》

◆ ISO 4892-3《 Methods of exposure to laboratory light sources-Part 3: Fluorescent UV lamps》

◆ ASTM D 4587《Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings》

◆ ASTM D 4329《Standard Practice S for Fluorescent UV Exposure of Plastic》

◆ ASTM G-151《Standard Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that use laboratory light sources》

◆ ASTM G-154《Standard Practice for Operating Fluorescent Light Apparatus for UV Exposure of Non-Metallic Materials》

◆ BS 2782:Part5, 《Method 540B (Methods of Exposure to Lab Light Sources) 》

◆ SAE J2020《Accelerated Exposure of Automotive Exterior Malts Using a Fluorescent UV/Condensation Apparatus》

◆ JIS D 0205《Test Method of Weather-ability for Automotive Parts》