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ISO 17088 specifies procedures and requirements for plastics, and products made from plastics, that are suitable for recovery through organic recycling, i.e. will disintegrate and biodegrade satisfactorily together with biowaste producing compost as an outcome, and will not leave any persistent or hazardous residues. It is intended to be used as the basis for systems of labelling and claims for compostable plastics materials and products.
Specifically, ISO 17088 provides guidelines for four aspects including:
(a) disintegration during composting,
(b) ultimate aerobic biodegradation,
(c) no adverse effects of compost on terrestrial organisms, and
(d) control of constituents.
Plastics products or materials meeting all the requirements specified in this guideline may be considered as “recoverable by organic recycling”, “organically recyclable”, “compostable in industrial composting”, or “suitable for organic recycling”. The term "biodegradable" shall not be used to describe the performance of plastics that meet this specification in supplier-to-consumer communications.
ISO 17088 is very similar to ASTM D6400.
The table below summarizes the major requirements set by ISO 17088:
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