This standard specifies the product classification, variety specifications, technical requirements, grading regulations, test methods, inspection rules, marking, packaging, storage and transportation of wool-type composite flakes used as insulation fillers for clothing and bedding. This standard is suitable for identifying the quality of wool-type composite flakes made of wool or a mixture of wool and other fibers as the raw material for the flocculation layer, single-layer or multi-layer thin materials as the composite base, and composite processing such as needle punching. The quality of other similar products can be evaluated with reference to the relevant provisions of this standard.