The practice defined in the ASTM D4459 standard, developed by the American Society for Testing and Materials (ASTM), includes specific procedures and test conditions applicable to the exposure of plastics to xenon-arc devices with window glass filters, in accordance with ASTM G151 and ASTM G155 standards, to evaluate the stability of plastics intended for indoor applications.
This application, whose full name is “ASTM D4459-21 Standard Practice for Xenon-Arc Exposure of Plastics for Indoor Applications, ” aims to simulate the effects produced by exposure to solar radiation through glass. This application uses exposure in a xenon arc device equipped with window glass filters and operated in accordance with ASTM G151 and ASTM G155 standards.
The full names of these standards are as follows:
Also, the ASTM D4674 standard describes exposures in a device that uses a combination of fluorescent cool white and ultraviolet (UV) lamps to simulate the effects of exposure to indoor fluorescent light and daylight filtered through window glass.
Results change when operating conditions change within the accepted limits of this practice. For this reason, a detailed report is given at the end of the tests. Important factors influencing test results include line voltage regulation, temperature and humidity control, and condition and age of burners and filters.
During testing, the xenon arc device is operated in continuous light mode without water spray. Unless otherwise specified, the irradiation should be controlled at one of the levels specified in the standard. If the exposure device is not equipped with irradiation control, the manufacturer's recommendations are followed to produce the specified irradiation levels. Unless otherwise specified, the temperature of the uninsulated black panel is controlled at 55 ± 2 degrees. Unless otherwise specified, the relative humidity is controlled at 55 ± 5 percent.
Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our company also provides standard testing services for xenon-arc exposure of plastics for indoor applications, within the scope of ASTM D4459-21 standard, with its trained and expert staff and advanced technological equipment. gives.
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