Standard Procedure for Exposure of Photodegradable Plastics as per ASTM D5208
Asphalt and bitumen chemical property testing per ASTM D36 and D92 at Infinita LabStandard Procedure for Exposure of Photodegradable Plastics as per ASTM D5208
Photodegradable plastics are exposed to fluorescent ultraviolet (UV) light according to ASTM D5208. When exposed to light, heat, and water after being used, photodegradable plastics are meant to quickly lose their chemical, physical, and mechanical qualities. Usually, chemically reactive sites are added to the polymer chains, which makes it easier for the polymer to degrade in the presence of heat, water, and light when it is exposed to the elements outside. Insulating materials can also be tested using ASTM D5208 as long as their maximum thickness is 20 mm.
Before the exposure and at various intervals, samples will be obtained. The mechanical qualities of the samples, or their loss, will be measured. Since samples’ mechanical characteristics will continue to change even after they are no longer exposed, tests should be performed on samples as they are extracted, without grouping.
The number of specimens per product will change depending on how many specimens are needed for the mechanical testing and how many time intervals are involved. There should be about five time intervals on average.
