ASTM D5071 is the standard practice for evaluating plastic photodegradation by exposing photodegradable plastics in a xenon arc apparatus. This test method involves exposing plastic samples to simulated sunlight under controlled conditions using a xenon arc lamp apparatus. The duration of exposure depends on the test conditions and the specific requirements of the test. The samples are then evaluated for changes in physical and chemical properties such as discoloration, cracking, loss of tensile strength, and changes in molecular weight. This standard practice helps to assess the resistance of plastics to photodegradation caused by exposure to outdoor environments.
ASTM D5071 Standard Practice for Exposure of Photodegradable Plastics to Xenon-Arc Apparatus is a test method developed by ASTM International to evaluate the photodegradability of plastics exposed to simulated outdoor weathering conditions using a xenon-arc apparatus. The standard provides a method to determine the degree of photodegradation by measuring changes in the physical and mechanical properties of plastics, such as color, tensile strength, elongation and impact resistance. The test conditions are designed to simulate outdoor exposure in terms of light, temperature and humidity.
