This standard specifies the use of quantitative chemical analysis for the determination of down and chemical fibers [polyester (chemical fiber), polypropylene (polypropylene fiber), acrylic fiber (polyacrylonitrile fiber), nylon (polyamide fiber), spandex (polyurethane fiber) Analytical method for down content in mixed filling materials composed of ester fibers]. This standard is applicable to the determination of imported and exported down and chemical fiber mixed filling materials.
SN/T 3316-2012 history
2012SN/T 3316-2012 Quantitative chemical analysis about the mixtures of feather and down blended with chemical fibres