GB/T 45042-2024Textiles—Quantitative chemical analysis—Mixtures of polyacrylonitrile preoxidized fiber and certain other fibers (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting is required.

Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.

This document was proposed by the China National Textile and Apparel Council.

This document is under the jurisdiction of the National Technical Committee on Standardization of Textiles (SAC/TC 209).

This document was drafted by: Fujian Fiber Inspection Center, Linquan Langshake Industry and Trade Co., Ltd., Ordos Inspection and Testing Center, Zhejiang Jili New Materials Co., Ltd., Xiamen Xiafang Textile Co., Ltd., Zhejiang Jinshi Textile Technology Co., Ltd., China Textile Standard Inspection and Certification Co., Ltd., Fuzhou Litian Textile Co., Ltd., China Textile Standard (Fujian) Testing Co., Ltd., Xiamen Zhongchuang Environmental Protection Technology Co., Ltd.

Jiangsu New Vision Advanced Functional Fiber Innovation Center Co., Ltd., Jiangsu Haike Fiber Co., Ltd., Dongguan Weiside Technology Development Co., Ltd. company.

The main drafters of this document are: Li Ling, Zheng Shaoming, Sui Jiaojiao, Zhang Qingshan, Shou Fengping, Guo Haixia, Yang Shiyu, Zhao Run, Wang Xiyou, Zhang Xiaquan, Yu Dongming, Lin Bihua, Zheng Zhihong, Li Jun, Zhang Wenfu.

Quantitative Chemical Analysis of Textiles Polyacrylonitrile pre-oxidized fibers and some other fibers mixture

1 Scope

This document describes the chemical analysis method for the determination of the composition of polyacrylonitrile preoxidized fibers and certain other fibers after removal of non-fibrous matter.

Method for fiber content in mixture.

This document is applicable to polyacrylonitrile pre-oxidized fibers and animal fibers (sheep wool, mulberry silk), cellulose fibers (cotton, linen, lyocell) , Modal, Viscose), Acetate, Triacetate, Polyester, Polyamide, Polyacrylonitrile, Polyethylene Fiber, polypropylene fiber, polylactic acid fiber, polyamide fiber, polyurethane elastic fiber, polyvinyl formal fiber, polyarylate fiber, Meta-aromatic polyamide fiber, para-aromatic polyamide fiber, polyarylene? diazole fiber, polytetrafluoroethylene fiber, polyimide fiber, A two-component mixture of aramid fiber, carbon fiber and polyphenylene sulfide fiber.

Note. The identification test method of polyacrylonitrile pre-oxidized fiber is shown in Appendix A.

2 Normative references

GB/T 2910.1

GB/T 2910.4

GB/T 2910.10

GB/T 2910.14

3 Terms and definitions

The following terms and definitions apply to this document.

4 A mixture of polyacrylonitrile pre-oxidized fiber and animal fiber (sodium hypochlorite method)

The principles, reagents, equipment, test procedures, calculation and expression of results involved shall be in accordance with GB/T 2910.4.

The correction factor (d value) for the mass change of oxidized fibers is 1.02.