T/TSMF 01-2025 Secondary Processed Fibers

Scope

Main technical content: 3.2.1 Appearance: White flocculent material, with a small amount of cotton lint, loose threads, and fiber strands allowed. It must not contain harmful hard impurities such as metal objects (e.g., iron wire) or wooden sticks, bricks, or sharp objects. There should be no visible dust or unhygienic substances. 3.2.2 Performance Indicators 3.2.2.1 Performance indicators are listed in the following table. **Item** **Standard** **Class I** **Class II** 1 No odor --- 2 Fiber length (mm) — Determined by the supplier and purchaser based on specific application requirements 3 Moisture content (%) ≤ 8 10 4 pH value 4.0–9.0 — 5 Microbiological indicators No pathogenic bacteria such as Pseudomonas aeruginosa, Staphylococcus aureus, or Hemolytic Streptococcus detected 6 Free chlorine (mg/kg) ≤ 10 20 3.2.2.2 Determination of performance indicators The performance indicators are determined based on GB/T 32479, "Basic Safety Technical Requirements for Re-processed Fibers", and combined with the results of enterprise visits and surveys. The product is divided into Class I and Class II according to GB/T 32479. The odor, free chlorine, microbiological, and pH indicators for re-processed fibers are specified. The fiber length and moisture content requirements are determined based on product usage requirements and multiple test data. 3.2.2.3 Labeling, packaging, transportation, and storage The requirements for product packaging and labeling are in accordance with the "Hebei Province Supervision and Management Measures for Re-processed Fibers" (Hebei Provincial People's Government Decree No. 15, 2008) and GB/T 18383 "General Technical Requirements for Fiber-based Products".

Development Information

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