GB/T 45512-2025Textiles — Quantitative chemical analysis — Mixtures of polybenzimidazole fiber with certain other fibers (English PDF)
纺织品 定量化学分析 聚苯并咪唑纤维与某些其他纤维的混合物
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
April 25, 2025
Implementation date
November 1, 2025
Scope
GB/T 45512-2025 is the English-translated version of 纺织品 定量化学分析 聚苯并咪唑纤维与某些其他纤维的混合物.
GB/T 45512-2025 is the Chinese national standard covering how much polybenzimidazole fibre is in a two-component blend — the removal of non-fibrous matter before anything is weighed, the choice of solvent method taken from the GB/T 2910 series according to the second fibre, whether protein, viscose, polyester, polyamide, acrylic, elastane or meta-aramid, the drying and weighing of the insoluble residue, and the identification test in the annex that separates PBI from the two aramids it resembles. First edition, under the China National Textile and Apparel Council. In force from 1 November 2025. Issued on 25 April 2025, it has been in force since 1 November 2025.
Document preview — GB/T 45512-2025
National Standard of the People's Republic of China
- ICS
- 59.080.01
- Classification
- W 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
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: China Textile Standards Inspection and Certification Co., Ltd., Anhui Jianma Protective Equipment Technology Co., Ltd., Fujian Fiber Inspection Co., Ltd.
Testing Center, China Textile Standards (Shenzhen) Testing Co., Ltd., Foshan Quality Metrology Supervision and Testing Center, Zhejiang Rainbow Technology Co., Ltd., Textile Standards (Fujian) Testing Co., Ltd., Hangzhou Ruikun Information Technology Co., Ltd., and China University of Metrology.
The main drafters of this document are: Tian Xiaorui, Zheng Shaoming, Liu Feifei, Jiang Siqi, Gu Jinxiang, Wan Cheng, Zhang Hui, Liu Tao, Li Xianwen, Zheng Yunbo, Full power, Wang Xun.
Quantitative Chemical Analysis of Textiles Mixtures of polybenzimidazole fibers and certain other fibers
1 Scope
This document describes the chemical analysis method for the determination of fiber content in a two-component mixture of polybenzimidazole fibers after removal of non-fiber matter. Quantitative method.
This document applies to polybenzimidazole fibers and certain protein fibers (sheep wool, mulberry silk, etc.), regenerated cellulose fibers (Lyocell fibers Fibers such as viscose, polyester, polyamide, and polyvinyl alcohol Fibers such as polyacrylonitrile, certain modified polyacrylonitrile, polyurethane elastic fibers, acetate, triacetate, polylactic acid and certain A two-component mixture of some meta-aromatic polyamide fibers.
Note. Appendix A gives the test method for identification of meta-aromatic polyamide fibers, para-aromatic polyamide fibers and polybenzimidazole fibers.
2 Normative references
GB/T 2910.1
GB/T 2910.4
GB/T 2910.6
GB/T 2910.10
GB/T 2910.11
GB/T 2910.12
GB/T 2910.14
GB/T 2910.24
GB/T 2910.25
GB/T 38015-2019
3 Terms and definitions
There are no terms or definitions that require definition in this document.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 2910.24Textiles - Quantitative chemical analysis - Part 24: Mixtures of polyester and some other fibers (method using phenol and tetrachloroethane)
- GB/T 38015-2019Textiles—Quantitative chemical analysis—Mixtures of elastane and certain other fibers
GB/T 2910.1 · GB/T 2910.4 · GB/T 2910.6 · GB/T 2910.10 · GB/T 2910.11 · GB/T 2910.12 · GB/T 2910.14 · GB/T 2910.25
Editions of GB/T 45512
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 45512-2025 | Textiles - Quantitative chemical analysis - Mixtures of polybenzimidazol fiber with certain other fibers | current edition | Current |
This page sells the current edition, GB/T 45512-2025. Earlier editions are listed for reference only.
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Related Standards
GB/T 2910.101-2009 — Textiles - Quantitative chemical analysis - Part 101: Mixtures of soybean protein composite fibre and certain other fibers
GB/T 2910.24-2009 — Textiles - Quantitative chemical analysis - Part 24: Mixtures of polyester and some other fibers (method using phenol and tetrachloroethane)
GB/T 38015-2019 — Textiles—Quantitative chemical analysis—Mixtures of elastane and certain other fibers
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