The Oxo-biodegradable Plastics Association (OPA) will certify as oxo-biodegradable, and will permit it’s logo to be used, in respect of products which are made using an OPA approved additive/masterbatch and shown by reports of at testing institutions approved by the OPA to comply with the following specification.

Oxo-degradation of plastics is defined by TC249/WG9 of CEN (the European Standards Organisation) as degradation identified as resulting from oxidative cleavage of macromolecules”.  And oxo-biodegradation as degradation identified as resulting from oxidative and cell-mediated phenomena, either simultaneously or successively.