FDA 21 CFR 177.1520

Meaning

Regulatory oversight ensures that plastic materials used for packaging do not transfer harmful substances to food. The code found in fda 21 cfr 177.1520 details the requirements for polyethylene and polypropylene resins. It lists the approved catalysts and additives allowed during the manufacturing of the polymer.

Compliance Specification

Material suppliers must certify that their products meet the specific density and melting point ranges defined in the law. Adhering to fda 21 cfr 177.1520 involves rigorous testing of the resin to ensure it falls within the permitted categories. This certification is a prerequisite for any material used in grocery containers or medical tubing.

Extraction Limit

Safety is measured by the amount of polymer or additive that can be dissolved by food simulants like hexane or xylene. Under fda 21 cfr 177.1520 the maximum levels of extractable fractions are strictly controlled. These tests simulate the conditions of use including temperature and duration of contact.

Resin Suitability

Different sub-paragraphs of the regulation cover specific types of olefins and their intended uses. Navigating fda 21 cfr 177.1520 requires a clear understanding of the final application whether it involves boiling water or fatty foods. Using a non-compliant resin can result in product recalls and significant legal liability.

The regulation provides a clear boundary for what can be safely used in direct contact with various food types. Moulders rely on this standard to verify that regrind content does not introduce prohibited substances into the final product.

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Material Traceability Food Contact Compliance Supercritical Fluid Chromatography

Polyolefin Low Molecular Weight Extraction and Migration Testing

Polyolefin migration compliance requires batch-specific testing for low molecular weight hydrocarbons using accredited simulants, exact temperatures, and GC-MS.

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Thermal Oxidative Degradation EU 10 2011 Yellowness Index

Controlled Rheology Visbreaking Degradation Risks in Food Contact Packaging Resins

Visbroken polypropylene risks organoleptic contamination and thermal degradation; verify residual peroxide, NIAS limits, and OIT before food contact use.

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EN 13130 Head Space Gas Chromatography Ziegler-Natta Catalyst

Verifying Virgin Resin Monomer Declarations for Polyolefin Import

Imported polyolefin virgin resin declarations require batch-matched GC-MS monomer analysis and complete Annex I chemical chain documentation prior to entry.

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Mass Spectrometry Specific Migration Limit Piringer Diffusion Model

Analytical Migration Screening Procedures for High Density Polyethylene Resin Consignments

Analytical screening of HDPE consignments requires solvent extractions, GC-MS profiling, and diffusion modeling to verify food contact compliance before release.

A row of white injection molded nylon cable ties remains attached to a plastic sprue after removal from the production tool cavity.

ISO 11357 Differential Scanning Calorimetry Surface Splay Microvoids

Sourcing Polypropylene Homopolymer Grades for Thin Wall Packaging Applications

Sourcing thin-wall PP homopolymer demands qualifying melt flow rates above 60 g/10 min while auditing peroxide residues to protect mechanical impact.

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Solvent Stripping Food Contact Compliance EU 10 2011

Preparative Isolation Protocols for Low Molecular Weight Polyolefin Fractionation

Preparative isolation of low molecular weight polyolefin fractions requires rigorous thermal solvent extraction to verify food contact compliance and REACH boundaries.

An insulated stainless steel tumbler is firmly held by a custom-padded vise within a clear industrial testing enclosure.

Polyolefin Oligomeric Saturated Hydrocarbons Taurocholate Micellar Solubilization Atmospheric Pressure Chemical Ionization

Standardized Analytical Fractionation Protocol for Sub-1000 Dalton Recycled Polyolefin Bioaccessibility Assessment

Sub-1000 Da polyolefin bioaccessibility requires preparative SEC isolation, micellar digestion extraction, GCxGC-HRMS identification, and compliance validation.

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