ASTM D 6954 :
Exposing and Testing Plastics that Degrade in the Environment by a Combination of Oxidation and Biodegradation
ASTM D6954 is a guide that helps scientists and researchers compare how different plastics break down in the environment. It looks at two processes: oxidation (when plastics break down due to heat and light exposure) and biodegradation (when microorganisms break down plastics). The guide has three parts: one to speed up and measure the property loss, one to measure biodegradation, and one to assess the environmental impact.
The guide suggests specific conditions for testing the plastics, like temperatures and humidity levels, that resemble real-world situations where the plastics might be used or disposed of. By following these guidelines, scientists can better understand how different plastics break down and how this might affect the environment. This information helps in creating more environmentally friendly plastics and waste management practices.
By testing through this standard, manufacturers receive certification for their product as Oxo-biodegradable (generally used for plastic items)