Case Studies

We are currently developing a new ASTM standard, titled “Standard Specification for Non-Floating Biodegradable Plastics Designed for Use in an Aquatic Environment.” This specification is designed to cover non-floating plastics that are engineered to biodegrade within marine, brackish, or freshwater environments. The main concern addressed by this standard is the persistence of biodegradable plastics in aquatic environments, particularly because these environments typically have lower temperatures that can significantly slow down the biodegradation process.

Recognizing the practical and cost-related challenges of conducting biodegradation experiments at these lower temperatures, the standard utilizes fundamental reaction kinetics principles along with existing biodegradation data from ASTM/ISO test methods. This approach helps estimate the time needed for plastics to fully biodegrade, ensuring the complete removal of polymer carbon. 

This development is a collaborative effort involving multiple stakeholders, including those from industry, academia, government, regulatory bodies, and consumers, reflecting a broad interest in ensuring the environmental safety and practicality of biodegradable plastics in aquatic settings.