ISO 16929 – Pilot Scale Composting Test

ISO 16929 is a standard composting method that determines the degree of disintegration of plastic materials in a pilot-scale test under defined composting conditions.

Compostable products are becoming more readily available, however, must undergo product testing to gain market and regulatory acceptance

The ISO 16929 test method is often requested for consumer and agricultural products including plastics, tarps, and textiles. ISO 16929 generally takes less time than other test methods like the ASTM D6400 and uses more representative microbial populations.

Standard testing for ISO 16929 runs for a minimum of 12 weeks; however, the composting process is generally continued until fully stabilized compost is achieved. Options for ISO 16929 testing include choice of soil/compost, a climate controlled lab and/or outside field testing.

The pilot scale composting provided by ISO 16929 is an important part of the ASTM D6400 compostability testing. This is because ISO 16929 generally represents a less idealized and more realistic composting environment.

Aerobic biodegradation and disintegration of plastic materials under controlled composting conditions is generally the type of testing that regulatory agencies require in order to make product claims.

It is highly recommended to review requirements with the appropriate regulatory agency to determine which biodegradation test is required to make performance claims about a material or product’s biodegradability.

For more information about ISO 16929 and biodegradation testing, contact our biodegradation lab at 847-483-9950 or info@situtest.com.