GB/T 46019.1-2025 Active National standards

GB/T 46019.1-2025 Plastics—Identification of recycled plastics—Part 1:Poly(ethylene terephthalate)(PET) materials

Publish Date: 2025-08-01 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 46019.1-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for synthetic resins and plastics

ICS Name: Recycling

Publish Date: 2025-08-01

Implement Date: 2026-02-01

Pages: 28 pages

Scope

This document describes the method of determining the volatile components of polyethylene terephthalate (PET) materials using headspace gas chromatography-mass spectrometry, and constructing a prediction model using the random forest algorithm to distinguish between post-consumption mechanically recycled PET plastic materials and virgin PET plastic materials. This document is applicable to the identification of flake-shaped recycled PET plastic materials obtained from post-consumption PET packaging bottles through crushing, screening, sorting, and washing, or granular PET recycled plastic materials manufactured by melt extrusion granulation and other processes from recycled PET bottle flakes. This document is not applicable to the identification of recycled PET plastic materials obtained through chemical recycling. Note: Recycled PET plastic materials obtained from other types of post-consumption PET products through mechanical recycling can be used as reference materials for identification.