Meaning
International standards that define the specifications and procedures for plastics that are suitable for recovery through organic recycling establish the benchmark for compostable polymers. Under iso 17088, the polymer must undergo complete biodegradation, disintegration, and must not cause ecotoxic effects in the soil. It provides the global framework for validating claims of compostability.
This standard does not apply to home composting environments.
Testing Criteria
Four distinct core aspects are analyzed during the laboratory verification process. Characterization of the plastic requires that the test samples be exposed to simulated municipal composting conditions. Compliance with iso 17088 demands that the test substance converts to carbon dioxide, water, and biomass within a set period.
Residual heavy metals must also fall below strict thresholds.
Commercial Benefit
Certification to this standard allows resin manufacturers to secure a market position in sustainable packaging. Adherence to iso 17088 is verified by independent laboratories to grant compostability labels. This third-party verification builds consumer trust.
Material Requirement
Moulders selecting resins for compostable food packaging must ensure the compound carries this certification. The additive package used in the resin can hinder compliance if the colorants or plasticizers do not biodegrade. Designing with certified resins under iso 17088 reduces the risk of regulatory rejection.
Compounders must trace every additive to guarantee that the final molded part meets the strict chemical limits.