This standard specifies the product classification, technical requirements, test methods, inspection rules and marking, packaging, transportation and storage requirements for recycled polyester staple fiber. This standard is applicable to recycled polyester short fibers produced by melt spinning with a linear density of 0.9dtex~ll.1dtex for yarn and non-woven use, and silicone filling materials with a linear density of 2.8dtex~27.8dtex. Or quality assessment of silicon-free recycled polyester staple fiber. Regenerated polyester staple fibers whose linear density is not within the above range can be used as a reference. Other types of recycled polyester staple fibers can also be used as reference.
FZ/T 52010-2009 Referenced Document
FZ/T 50002 Testing method for shape factor of man-made fiber*, 2013-10-17 Update
FZ/T 50004 Testing method for shrinkage in hot airof polyester staple fibers*, 2011-12-20 Update
FZ/T 50009.1 Testing method for linear density of three-dimensional crimp polyester staple fibres.Measure at length of single fibres
FZ/T 50009.2 Testing method for average length of three-dimensional crimp polyester staple fibres.Measure at length of single fibres
FZ/T 50009.3 Testing method for crimping performance of hollow polyester staple fibres
FZ/T 50009.4 Test method for bulkiness and elasticity of hollow polyester staple fiber*, 2019-11-11 Update
GB/T 14334 Sampling method for man-made staple fibres
GB/T 14335 Testing method for linear density of man-made staple fibres
GB/T 14336 Testing method for length of man-made staple fibers
GB/T 14337 Man-made fibre—Test method for tensile properties of staple fibre*, 2022-04-15 Update
GB/T 14338 Man-made fibre—Test method for crimping performance of staple fibre*, 2022-04-15 Update
GB/T 14339 Testing method for defect of man-made staple fibres
GB/T 14342 Man-made fiber.Test method for specific resistance of staple fibers*, 2015-09-11 Update
GB/T 3291.1 Textiles--Terms of textile material properties and test--Part 1: Fibre and yarn
GB/T 4146 Textile terms and terminology(parts of chemical fibers)
GB/T 6503 Man-made fibres.Test method of moisture regain*, 2017-12-29 Update
GB/T 6504 Man-made fiber.Test method for oil content*, 2017-12-29 Update
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values