Waste Cessation Criteria for Secondary Polyolefin Resin Compounding
Secondary polyolefin waste cessation requires verified feedstock sorting limits, vacuum devolatilization, REACH threshold compliance, and audited FPC dossiers.
EN 15344
Meaning
European standard frameworks for recycled plastics specify testing methods and characterization criteria for secondary polyethylene materials. Compliance with EN 15344 requires characterization of melt flow rate, density, color and contaminant levels in recycled polyethylene batches. The standard defines mandatory reporting parameters for recyclers selling post-consumer or post-industrial polymers to converters.
Its provisions govern resin quality identification and stop short of regulating final part structural performance.
Quality Specification
Resin datasheets produced under standardized testing protocols provide moulders with essential processing limits. Adherence to EN 15344 ensures that lot-to-lot variations in recycled polyethylene remain within agreed tolerances. Physical properties like tensile strength and elongation at break determine whether regrind blends can substitute virgin grades in demanding moulding applications.
Contaminant Limit
Non-polymeric impurities and residual moisture degrade processing equipment and generate surface defects in finished parts. Testing under EN 15344 quantifies solid filtration residues and volatile organic contents before material enters the extruder feed hopper. High ash content indicates filler loading or inorganic contamination, affecting melt filtration schedules.
Traceability Requirement
Recycled plastic streams require documentation covering feed origins and processing history. Standardized batch records support material traceability, enabling moulders to verify compliance with environmental regulations and commercial contracts. Consistent material characterization reduces melt viscosity fluctuations during injection moulding runs.