FZ/T 54075-2014 Recycled polypropylene drawn yarn

GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB 250-1995 Gray scale for assessing change in colour GB/T 250-2008 Textiles—Tests for colour fastness—Grey scale for assessing change in colour GB/T 3291.1-1997 Textiles—Terms of textiles material properties and test—Part 1:Fibre and yarn GB/T 3291.3-1997 Textiles—Terms of textiles material properties and test—Part 3:General GB/T 4146.1-2009 Textiles—Man-made fibres—Part 1:Generic names GB/T 4146.1-2020 Textiles—Man-made fibres—Part 1:Generic names GB/T 4146.3-2011 Textiles—Man-made fibers—Part 3:Terms of inspection GB/T 6502-2001 Sampling method for synthetic filament yarns GB/T 6502-2008 Sampling method of man-made filament yarns GB/T 6504-2001 Test method for determination of oil synthetic filament yarns GB/T 6504-2008 Testing method for oil content of man-made fibres GB/T 6504-2017 Man-made fiber—Test method for oil content GB/T 6505-2001 Test method for thermal shrinkage of synthetic filament yarns GB/T 6505-2008 Testing method for thermal shrinkage of man-made filament yarns GB/T 6505-2017 Man-made fiber—Test method for thermal shrinkage of filament yarns(after treatment） GB/T 7573-2002 Textiles—Determination of pH of the aqueous extract GB/T 7573-2009 Textiles—Determination of pH of aqueous extract GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 14343-2003 Testing method for linear density of synthetic filament yarns GB/T 14343-2008 Testing method for linear density of man-made filament yarns GB/T 14344-2003 Testing method for drawability of synthetic filament yarns GB/T 14344-2008 Testing method for tensile of man-made filament yarns GB/T 14344-2022 Man-made fibre—Test method for tensile properties of filament yarns GB/T 17593-1998 Textiles—Test method of heavy metal ions—Atomic absorption spectrophotometry GB/T 17593.1-2006 Textiles—Determination of heavy metals—Part 1:Atomic absorption spectrophotometry GB/T 17593.2-2007 Textiles—Determination of heavy metals—Part 2:Inductively coupled plasma atomic emission spectrometry GB/T 17593.3-2006 Textiles—Determination of heavy metals—Part 3:Chromium(Ⅵ)—Spectrophotometry GB/T 17593.4-2006 Textiles—Determination of heavy metals—Part 4:Arsenic and mercury—Atomic fluorescence spectrophotometry GB/T 7573-2025 Textiles—Determination of pH of aqueous extract GB/T 17593.2-2025 Textile—Determination of heavy metals—Part 2:Inductively coupled plasma-optical emission spectrometry(ICP-OES) and inductively coupled plasma-mass spectrometry(ICP-MS)