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GB/T 45331-2025: ePTFE membrane for reinforcement of proton exchange membrane
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 45331-2025 | English | 279 |
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ePTFE membrane for reinforcement of proton exchange membrane
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GB/T 45331-2025
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Basic data | Standard ID | GB/T 45331-2025 (GB/T45331-2025) | | Description (Translated English) | ePTFE membrane for reinforcement of proton exchange membrane | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G33 | | Classification of International Standard | 83.140.10 | | Word Count Estimation | 14,136 | | Date of Issue | 2025-02-28 | | Date of Implementation | 2025-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 45331-2025: ePTFE membrane for reinforcement of proton exchange membrane---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.
GB/T 45331-2025 English version. ePTFE membrane for reinforcement of proton exchange membrane
ICS 83.140.10
CCSG33
National Standard of the People's Republic of China
Polytetrafluoroethylene membrane for proton exchange membrane reinforcement
Released on 2025-02-28
2025-09-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Technical Requirements 2
5 Test methods 2
6 Inspection Rules 4
7 Marking, packaging, transportation and storage 6
References 7
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 was proposed and coordinated by the National Technical Committee for Separation Membranes Standardization (SAC/TC382).
This document was drafted by. Shandong Dongyue Future Hydrogen Energy Materials Co., Ltd., Ningbo Changqi Microfiltration Membrane Technology Co., Ltd., Shandong Dongyue
Polymer Materials Co., Ltd., Jiangsu Jinyou New Materials Co., Ltd., Zibo Metrology Technology Research Institute, Zhejiang Jiaxiang Fluoroplastic Co., Ltd.,
Zibo High-tech Industrial Development Zone Fine Chemicals and Polymer Materials Research Institute, Shandong Senrong New Materials Co., Ltd., Hangmo Technology Development
Group Co., Ltd., Shandong Membrane Society, Jinan Sike Testing Technology Co., Ltd., Jiangsu Yuanhydro New Energy Technology Co., Ltd., Zhejiang Sai
Xun Environmental Protection Technology Co., Ltd., Zhejiang Jusheng Fluorine Chemical Co., Ltd., Shanghai Hancheng Industrial Co., Ltd., Jiangsu Kerun Membrane Materials Co., Ltd., Gui
Meiling Power Supply Co., Ltd., Shanxi Guorun Energy Storage Technology Co., Ltd., Beijing Xinyan Chuangneng Technology Co., Ltd., Hebei Jinli New Energy Technology
Co., Ltd., Shanghai Electric Group Co., Ltd., Wharton Technology Co., Ltd., Gore (Shenzhen) Co., Ltd., Liaoning Kejingxin
Materials Co., Ltd., Anhui Yuanjun Hydrogen Energy Technology Co., Ltd., Shenzhen Xiongtao Power Technology Co., Ltd., Suzhou Youkefa New Materials
Materials Technology Co., Ltd., Hunan Longshen Hydrogen Energy Technology Co., Ltd., Shanghai Wenjing Energy Technology Co., Ltd., Shanghai Plastics Research Institute Co., Ltd.
Yangzhou Wanrun Optoelectronics Technology Co., Ltd., Sunshine Hydrogen Energy Technology Co., Ltd., Guangdong Kavoro Hydrogen Technology Co., Ltd., Fujian Haidefu
New Materials Co., Ltd., Ordos Yongsheng Water Treatment Co., Ltd., Shandong Meifu Technology Co., Ltd., State Power Investment Group Hydrogen Energy Technology Co., Ltd.
Technology Development Co., Ltd., Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Suzhou Hydrogen Energy Industry Innovation Center Co., Ltd., Shenzhen General Hydrogen
Energy Technology Co., Ltd., Shandong Haihua Group Co., Ltd., Sichuan Star Energy Environmental Protection Technology Co., Ltd., Sany Hydrogen Energy Co., Ltd., Nanjing Engineering
College, Jiaxing Furuibang New Material Technology Co., Ltd., and Shanghai Hydrogen Era Technology Co., Ltd.
The main drafters of this document are. Wang Li, Chen Yang, Li Zhaohui, Chen Yue, Gu Liujun, Wang Jun, Hu Quanying, Cheng Qi, Rong Qingong, Xi Xuejie, Tian Huaide,
Zhang Muqing, Xu Bin, Xu Zhiliang, Zhou Hougao, Yang Ying, Cao Pengfei, Feng Yong, Meng Qing, Qi Zhigang, Su Bihai, Yang Min, Jin Yan, Wang Zhiyong, Zhang Jianguo,
Li Haibin, Zhang Zhen, Ping Lifeng, Ding Yanchun, Hu Jing, Wang Shuwei, Li Gang, Wei Guangke, Yu Ruixing, Huang Weiyan, Cao Zhicheng, Liu Bo, Xia Fengjie, Hao Jinkai,
Yao Keguang, Liu Jianlu, He Zhi, Rao Hongyu, Zhao Zhendong, Zhao Xinglei, Xu Jianfeng, Liu Yang, Li Wenhao.
Polytetrafluoroethylene membrane for proton exchange membrane enhancement
1 Scope
This document specifies the technical requirements, test methods,
Inspection rules as well as marking, packaging, transportation and storage.
This document applies to the research, production, use and management of polytetrafluoroethylene membranes for proton exchange membrane enhancement, and other types of ion membrane enhancement
The materials are implemented as reference.
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 191 Pictorial markings for packaging, storage and transportation
GB/T 20042.3-2022 Proton exchange membrane fuel cells Part 3.Proton exchange membrane test methods
GB/T 32361-2015 Test method for separation membrane pore size - Bubble point and average flow method
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
It is made of polytetrafluoroethylene resin and produced by biaxial stretching process. It can be compounded with proton conductive polymer and enhance mechanical strength.
The film that acts.
3.2
Porosity
The percentage of membrane pore volume to the total membrane volume.
[Source. GB/T 20103-2006, 2.1.32]
3.3
most probable pore size
The pore size distribution curve corresponds to the pore size where the percentage of pores appears is the largest.
[Source. QB/T 5002-2016, 3.2]
3.4
Mass per unit area
The mass per unit area of the film in its natural state.
Note 1.Includes film entities and their open pores and closed pores.
Note 2.It is consistent with the concept of gram weight and the unit is grams per square meter (g/m2).
3.5
Apparent density volumedensity
The mass per unit volume of the film in its natural state.
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