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See Chinese contents: GB/T 40006.3-2021 GB/T 40006.3-2021: Plastics - Recycled plastics - Part 3: Polypropylene(PP) materials
This document specifies the classification and designation, requirements, test methods, inspection rules, marking, packaging, transportation and storage, etc. of polypropylene recycled plastics. This document applies to polypropylene recycled plastic particles made from waste polypropylene plastics as raw materials through processes such as screening, classification, cleaning, melt extrusion granulation (including granulation processes such as bracing, hot cutting and/or water cutting). The matrix of the polypropylene recycled plastic is all propylene homopolymers specified in GB/T 2546.1, as well as other propylene copolymers with 1-olefin monomers less than 50% in mass fraction, and a blend of the above polymers with a mass fraction of not less than 50%.
