GB/T 37547-2019 in English
VALIDClassification and code of waste plastics
- Issued on:2019-08-30
- Implemented on:2019-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 37547-2019废塑料分类及代码》由TC415（全国产品回收利用基础与管理标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Analysis of the core content of the standard
This standard constructs a standardized framework for the recycling of waste plastics, mainly including:
- 7 basic classifications: polymer systems such as PET, ABS, PVC, etc.
- Three-level quality system (A/B/C): based on core indicators such as moisture content (1.0%-10%) and impurity content (2-10mg/kg)
- 8-bit coding system: a hierarchical structure of 06 (major category) -01 (medium category) -01 (minor category) -01 (graded)
Comparative analysis of classification systems
| Plastic type | Sub-items | Typical applications | Key testing indicators |
|---|---|---|---|
| Waste PET | Bottle flakes/others | Beverage bottle recycling | Intrinsic viscosity 0.66-0.85dL/g |
| Waste PVC | Soft/hard | Building materials and pipes | Density 1.20-1.80g/cm³ |
| Waste PS foam | Hot melt block (H)/cold pressed block (C) | Packaging material | Ash content ≤10% |
Technological Evolution and Innovation
This standard has the following breakthroughs:
- Established a differentiated coding system for hot melt blocks (H)/cold pressed blocks (C) for EPS foam for the first time
- Introduced odor evaluation and grading (GB/T35773) as a quality indicator
- Cleared the requirements for cross-border pollution control (such as PVC content in PET ≤500mg/kg)
Implementation Recommendations
Enterprise Application Guide:
- Established a rapid detection system for raw materials (refer to the test methods in Chapter 8)
- Established a digital traceability system according to the code rules
- Focus on the melt index control of ABS plastic (≤50g/10min)
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