GB/T 38923-2020 in English
VALIDClassification and code of textile waste .
- Issued on:2020-06-02
- Implemented on:2020-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 38923-2020废旧纺织品分类与代码》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 complete classification and coding system for waste textiles, and realizes accurate identification through 8-digit code:
| Code segment | Number of digits | Meaning | Example |
|---|---|---|---|
| 01 | 1-2 digits | Major category code (fixed value) | 01 represents waste textiles |
| 01 | 3-4 digits | Middle category (source) | 01 Waste textiles/02 Used textiles |
| 05 | 5-6 digits | Sub-category (material) | 05 represents acrylic |
| 01 | 7-8 digits | Quality grade | 01 first-class product |
Comparison of key technical indicators
Differences in quality requirements for cotton waste textiles
| Grade | Code | Unqualified materials ≤ | Cotton fiber content ≥ |
|---|---|---|---|
| First level | 01010101 | 0.1% | 90% |
| Second level | 01010102 | 2% | 85% |
| Third level | 01010103 | 3% | 80% |
Typical case: A recycling company used airflow sorting equipment to increase the purity of mixed waste cotton fiber from 78% to 91%, successfully reaching the first-level product standard
Standard implementation suggestions
- Sorting process: It is recommended to configure a near-infrared spectrometer to quickly identify materials
- Code application: Embed 8-digit codes in the logistics system to achieve traceability
- Quality control: Establish laboratory testing capabilities according to GB/T 2910
Standard evolution analysis
Compared with industry standards such as FZ/T07002, the innovation of this standard lies in:
- For the first time, a three-dimensional classification system of source-material-quality is established
- Special processing rules for mixed materials (code 99) are added
- The content of unqualified materials is introduced as the core classification indicator
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