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Determination of oligomers in polyethylene terephthalate fibre and chip - Advanced polymer chromatography (APC)
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GB/T 45710-2025
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Basic data | Standard ID | GB/T 45710-2025 (GB/T45710-2025) | | Description (Translated English) | Determination of oligomers in polyethylene terephthalate fibre and chip - Advanced polymer chromatography (APC) | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | W50 | | Classification of International Standard | 59.060.20 | | Word Count Estimation | 10,173 | | Date of Issue | 2025-05-30 | | Date of Implementation | 2025-12-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45710-2025: Determination of oligomers in polyethylene terephthalate fibre and chip - Advanced polymer chromatography (APC)
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 59.060.20
CCS W50
National Standard of the People's Republic of China
Polyethylene terephthalate fiber and chips
Determination of polymers by high performance polymer chromatography (APC)
Released on 2025-05-30
2025-12-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
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.
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 is proposed and coordinated by the National Technical Committee on Standardization of Chemical Fibers (SAC/TC586).
This document was drafted by. Zhejiang Sci-Tech University, Modern Textile Technology Innovation Center (Jianhu Laboratory), Zhejiang Tongkun New Materials Research Institute
Co., Ltd., China Chemical Fiber Industry Association, Jiangsu Hengli Chemical Fiber Co., Ltd., Xinfengming Group Co., Ltd., Shanghai Textile Industry
Industry Technical Supervision Institute, Sinopec Yizheng Chemical Fiber Co., Ltd., Fujian Sailon Technology Co., Ltd., Wuxi Jintong High Fiber Co., Ltd.,
Yuyao Dafa Chemical Fiber Co., Ltd., Zhejiang Guxiandao Green Fiber Co., Ltd., Zhejiang Yuyue New Materials Co., Ltd., Dezhou Shengyuan Fiber Science and Technology Co., Ltd.
Technology Co., Ltd., Zhejiang Hengchuang Advanced Functional Fiber Innovation Center Co., Ltd., and Shanghai Textile Group Testing Standards Co., Ltd.
The main drafters of this document are. Lv Wangyang, Chen Wenxing, Chen Haixiang, Zhu Wei, Jin Gaoling, Wang Jianhua, Zhang Xuefeng, Li Deli, Li Hongjie,
Su Fengxian, Zhu Enbin, Qian Qiyuan, Gu Jun, Yang Zhichao, Sun Wenxun, Wang Xinzhong, Fan Chenxi, Dong Xiaotang, Lin Zhenyong.
Polyethylene terephthalate fiber and chips
Determination of polymers by high performance polymer chromatography (APC)
Warning---People who use this document should have practical experience in formal laboratory work. This document does not address all possible safety issues.
The user is responsible for taking appropriate safety and health measures and ensuring compliance with the conditions stipulated in relevant national laws and regulations.
For certain solvents, please read the Material Safety Data Sheet (SDS) carefully.
1 Scope
This document describes a test method for the determination of oligomer content in polyethylene terephthalate (PET) by high performance polymer chromatography.
This document is applicable to polyethylene terephthalate fibers and chips, and other PET products shall be implemented accordingly.
2 Normative references
The contents of the following documents constitute essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 4146 (all parts) Textiles - Chemical Fibers
3 Terms and definitions
GB/T 4146 (all parts) and the following terms and definitions apply to this document.
3.1
Polyethylene terephthalate (PET) is a polymer with a degree of polymerization of no more than 10.
3.2
Based on the different molecular sizes of polymers, small particles and large-pore ethylene bridge hybrid particles are used to fill high stability, high resolution and
Low diffusion columns are used to efficiently separate polymer molecular components.
4 Principle
Dissolve the PET sample with hexafluoroisopropanol, slowly add tetrahydrofuran to reprecipitate the PET macromolecules in the solution, and filter the solution.
Afterwards, the oligomer components were separated by high performance polymer chromatography, and the oligomer content in the sample was calculated based on the component concentration and its peak area.
content.
5 Reagents or materials
5.1 Hexafluoroisopropanol. CAS No. 920-66-1, purity ≥ 99.5%.
5.2 Tetrahydrofuran. CAS No. 109-99-9, chromatographic grade.
5.3 Standard sample of fiber-grade polyester chips (GSB10-1332-F05).
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GB/T 45710-2025: Determination of oligomers in polyethylene terephthalate fibre and chip - Advanced polymer chromatography (APC)
Status: Valid
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