General safety technical requirements for recycled fiber
1 Scope
This standard specifies the terms and definitions, basic safety technical requirements, inspection, judgment rules and marking of recycled fiber.
This standard is applicable to the production, processing and sales of recycled fibers.
2 Normative references
The following referenced documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documents (including any amendments) applies.
GB/T 7573 Textiles — Determination of pH of the aqueous extract
GB 15979 Hygienic standard for disposable sanitary products
GB/T 28024 Determination of sensory odors for products with filling materials
GB/T 28025 Determination of the residual chlorine in products with filling materials — Water extraction method
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
recycled fiber
fiber that made of fiber waste, fiber products and waste, and processed by opening and other methods
3.2
sensory odors
abnormal odor emitted by recycled fibers, including musty smell, high boiling range petroleum smell (such as gasoline, kerosene, diesel oil), fishy smell, aromatic hydrocarbon smell, goaty smell, urine smell, etc.
3.3
free residual chlorine
chlorines in the form of hypochlorous acid, hypochlorite ion and dissolved elemental chlorine
