There are several standard test methods used to measure biodegradability. The test generally accepted in Europe is the Organization of European Cooperative Development (OECD) 301B test. This test is accepted by product developers and consumers as a “measuring stick” to help the user to understand the products’ environmental impact. ASTM D7373 is gaining acceptance as evidenced by EPA’s inclusion into the 2013 VGP guidelines.
Acceptable or passing levels for these tests are as follows:
|Biodegradability, %||ASTM D7373||> 60%|
|Biodegradability, % in 28 days||OECD 301B||≥ 60%|