Polymer Migration Testing Parameters for European Food Contact Compliance
European food contact polymer compliance mandates measuring total migration below 10 mg/dm² and specific migration limits using exact simulants and conditions.
Article 17 Traceability
Meaning
Documentation requirements for polymer origin verify the source of feedstock and the specific chemical pathways used to convert monomers into finished thermoplastic resins. Article 17 traceability compels manufacturers to track the provenance of raw materials from the initial extraction or chemical synthesis stage through every physical transformation in the supply chain. This regulatory framework ensures that the composition of a plastic material remains consistent with environmental and safety claims established at the point of origin.
Supply Chain Control
Compliance with this protocol demands granular data logging for every batch of resin during the extrusion process. Producers record the specific additive packages and filler concentrations introduced to the base polymer, as these additions alter the technical performance of the final moulded part. Data gaps during high-speed production lead to batch rejection if the material cannot link back to a verified virgin source.
Virgin resin costs remain stable when the integrity of this documentation holds, whereas reliance on unverified regrind stocks introduces physical inconsistency and triggers audit failures.
Processing Verification
Injection moulding machines record pressure and temperature variables that correspond to the unique thermal history of each material grade. Monitoring these parameters provides physical evidence that the processed resin matches the specifications listed on the original manufacturer certificate. Variations in melt flow index or moisture content signify a drift from the validated material properties established during the initial tool qualification phase.
Excess heat or incorrect cycle times degrade the molecular weight of the polymer, changing the stiffness and impact resistance of the finished object.
Audit Accuracy
Regulatory bodies use these records to confirm that the final plastic product meets the strict material definitions required for food contact or medical applications. Verification of the entire chain prevents the substitution of low-grade additives that cause structural failures or unexpected off-gassing in the mould cavity. Consistent tracking across the production cycle confirms that every unit of resin remains within the allowed parameters for safe use in specific engineering environments.