GB/T 32373-2025 English PDFGB/T 32373: Historical versions
Basic dataStandard ID: GB/T 32373-2025 (GB/T32373-2025)Description (Translated English): Test methods for reverse osmosis membranes Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J77 Classification of International Standard: 07.060; 23.100.60 Word Count Estimation: 26,267 Date of Issue: 2025-08-29 Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 32373-2015 Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China GB/T 32373-2025: Test methods for reverse osmosis membranes---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT32373-2025ICS 07.060;23.100.60 CCSJ77 National Standards of the People's Republic of China Replaces GB/T 32373-2015 Reverse osmosis membrane testing methods Published on 2025-08-29 Implemented on 2026-03-01 State Administration for Market Regulation The State Administration for Standardization issued a statement. ForewordThis document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents". Drafting. This document replaces GB/T 32373-2015 "Test Methods for Reverse Osmosis Membranes". Compared with GB/T 32373-2015, the main differences are structural adjustments and... Aside from editorial changes, the main technical changes are as follows. a) The wording of "Test Procedures for Desalination Rate and Water Flux" has been revised (see 5.4,.2015 version 5.4); b) The wording of "Conductivity method for calculating desalination rate" has been revised (see 5.5.1,.2015 version 5.5.1); c) A new method for calculating desalination rate, the "chloride ion concentration method" (see 5.5.1), has been added; d) The test procedure for the integrity of the desalination layer has been modified (see 6.3,.2015 version of 6.3); e) The test procedure for pressure resistance has been modified (see 7.3,.2015 version 7.3); f) Improved resistance to colloidal contamination (see Chapter 8); g) Improved resistance to inorganic scaling and fouling (see Chapter 9); h) Increased resistance to organic contamination (see Chapter 10). Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents. This document was proposed and is under the jurisdiction of the National Technical Committee on Standardization of Separation Membranes (SAC/TC382). This document was drafted by. Wharton Technology Co., Ltd., Shandong Zhaojin Membrane Technology Co., Ltd., and Zhejiang Jinmo Environmental Technology Co., Ltd. Company, Tianjin Institute of Seawater Desalination and Comprehensive Utilization, Ministry of Natural Resources, Hangzhou Water Treatment Technology Research and Development Center Co., Ltd., China Ocean University Learning, Sanda Membrane Technology (Xiamen) Co., Ltd., Tianjin Membrane Technology Co., Ltd., Beijing Yanshan Petrochemical High-Tech Co., Ltd. Ordos Yongsheng Wastewater Treatment Co., Ltd., Chengdu Mefort Membrane Environmental Protection Technology Co., Ltd., Hunan Aowei Technology Co., Ltd. SMIC Hengrun Environmental Technology (Beijing) Co., Ltd., Suzhou Surui Membrane Nanotechnology Co., Ltd., China Three Gorges Corporation, Entai Environmental Technology (Changzhou) Co., Ltd., Jining Poseidon Environmental Technology Co., Ltd., Haitian Water Group Co., Ltd., Beijing Low Carbon Clean Energy Research Institute, Shandong Electric Power Construction Third Engineering Co., Ltd., Hangzhou Shangtuo Environmental Technology Co., Ltd., Harbin Institute of Technology Water Resources Home Engineering Research Center Co., Ltd., Shandong Biyuan Water Environmental Protection Technology Co., Ltd., Hangmembrane Technology Development Group Co., Ltd., Hunan Qinsen High-Tech New Materials Co., Ltd., Guoneng Longyuan Environmental Protection Nanjing Co., Ltd., Jiangsu Longmo Technology Co., Ltd., Beijing Biyuan Water Separation Membrane Technology Co., Ltd. Company, Shanghai Kaixin Separation Technology Co., Ltd., Lianyungang Municipal Quality and Technical Comprehensive Inspection and Testing Center, Ningbo Haozuan Technology Co., Ltd. Zhongfu New Water Source Technology Co., Ltd., Qinghai Qingyuan Lithium Industry Technology Co., Ltd., Anhui Shunyu Water Affairs Co., Ltd., and Jinke Environment Co., Ltd. Limited Liability Company, Ningbo Rixin Hengli Technology Co., Ltd., Wanhua Chemical Group Co., Ltd., Henan Jingbiying Environmental Technology Co., Ltd., Chongqing Gelin Environmental Protection Technology Co., Ltd., Yitai (Nanjing) Environmental Protection Technology Co., Ltd., Yimete (Jiangsu) Environmental Protection Technology Co., Ltd., Beijing Xinbaili Science and Technology Development Co., Ltd., the Eighth Research Institute of Nuclear Industry, Zhongke Wochuan (Suzhou) New Materials Technology Co., Ltd., and Changzhou Kede Water Treatment Complete Equipment Co., Ltd. Equipment Co., Ltd., Suzhou Fumiao Membrane Technology Co., Ltd., Shaanxi Dingche Membrane Technology Co., Ltd., Doulton Membrane Technology (Shenzhen) Co., Ltd. Suzhou Puxi Environmental Protection Technology Co., Ltd., Zhejiang Zhongguang Environmental Equipment Co., Ltd., Shandong Haihua Group Co., Ltd., Hangzhou Haina Environmental Protection Technology Limited Liability Company, Chongqing Haitong Environmental Protection Technology Co., Ltd., Tianjin University of Technology, Zhejiang Huiyong New Materials Co., Ltd., Cangzhou City Tianjin University of Technology Research Institute, Henan Besen Environmental Protection Technology Co., Ltd., Jiangsu Desail Fluid Technology Co., Ltd., China Railway Shanghai Engineering Bureau Group Municipal Environmental Protection Engineering Cheng Co., Ltd., Aoli Machinery (Group) Co., Ltd., Zhengzhou Hengbo Environmental Technology Co., Ltd., Hangzhou Yingpu Environmental Technology Co., Ltd. The company, Ningbo Longwei Environmental Technology Co., Ltd., Chengdu Zhihe Environmental Protection Technology Co., Ltd., Xinyu (Jiangsu) Environmental Protection Technology Co., Ltd., Zhejiang Jian Membrane Technology Co., Ltd., Hebei Guanyu Environmental Protection Equipment Co., Ltd., Yuanda Health Technology (Tianjin) Co., Ltd., Tianjin Membrane Materials Co., Ltd. Materials Technology Co., Ltd., Zhejiang Aoshi Core Material Technology Co., Ltd., and Anhui Zhihong Purification Technology Co., Ltd. The main drafters of this document are. Jin Yan, Zhang Weizheng, Wang Siliang, Xu Yinong, Wang Xuliang, Tan Huifen, Gao Xueli, Dai Jianhui, Fan Ning, and Wang Yaling. Ma Yonghong, Han Liang, Peng Jun, Wang Shuang, Li Chengyong, Chen Yasong, Xiang Hao, Yang Jiguang, Pan Zhicheng, Xiong Rihua, Dai Zengli, Tan Bin, Wu Chuandong, Cheng Hailiang Fan Yunshuang, Wang Hanyi, Qi Saren, Ma Zhiyuan, Shen Juan, Lu Yanbin, Ge Wenyue, Yin Wen, Wu Liang, Nanyang, Lai Yongliang, Deng Jie, Liu Mu, Luo Peidong Wu Junhui, Liang Yi, Li Guo, Lin Yujun, Zhang Zhenghai, Li Junzhan, Ding Zhenjie, Zhu Yuchang, Li Chunfang, Ma Lifeng, Zhu Jiasheng, Zhang Zhao, Lin Xiaofeng Gu Jiabin, Liu Jianlu, Zhang Xiaolong, Zhao Xiaoyang, Chang Na, Cao Yi, He Benqiao, Chen Qiying, Dai Hongjun, Yang Shengqiao, Hu Yunxia, Li Shengyong, Jiao Jiangtao Liang Erfei, He Shuibing, Liu Chao, Qu Rui, Zhang Yunfei, Wang Guoqiang, Liu Liwei, Jiang Peng, Yue Xinye, Xiong Zhi, Chen Keke, Zhao Yunpeng, Xiong Zhaokun, Zheng Tao, Liu Yang, Shi Chudao, Wang Haitao, Wang Haijing, He Longwei. This document was first published in.2015, and this is its first revision. Reverse osmosis membrane testing methods 1.Scope This document describes the reverse osmosis membrane thickness and thickness uniformity, desalination rate, water flux, desalination layer integrity, pressure resistance, and resistance to colloidal fouling. Test methods for performance, resistance to inorganic scaling and fouling, and resistance to organic fouling. This document applies to the testing of flat-sheet reverse osmosis membranes.2 Normative referencesThe contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included. For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document. GB/T 5750.4 Standard Examination Methods for Drinking Water – Part 4.Sensory Characteristics and Physical Indicators GB/T 6672 Mechanical Measurement Method for Determination of Thickness of Plastic Films and Sheets GB/T 6908 Analytical Methods for Boiler Water and Cooling Water – Determination of Conductivity GB/T 15453 Determination of chloride ions in industrial circulating cooling water and boiler water GB/T 20103-2006 Terminology for Membrane Separation Technology 3.Terms and Definitions The terms and definitions defined in GB/T 20103-2006, as well as the following terms and definitions, apply to this document. 3.1 flat membrane A membrane in the form of a flat plate or a sheet of paper. Note. Sheet membranes typically have a support layer (such as nonwoven fabric) and are used to prepare plate-and-frame, folded, and spiral-wound membrane elements. [Source. GB/T 20103-2006, 2.1.27] 3.2 Salt removal rate This indicates the ability to remove salt from the feed solution. Note. Expressed as a percentage. [Source. GB/T 20103-2006, 2.2.11, with modifications] 3.3 water fluxwaterflux Under certain operating conditions, the amount of water that permeates per unit area per unit time. 3.4 The substances remaining after filtration and evaporation of water under specified conditions (i.e., the total amount of dissolved salts, organic matter, and colloidal substances in the water). Note. When the organic matter content in water is low, the total salt content can be approximated, and the unit is milligrams per liter (mg/L). [Source. GB/T 20103-2006, 2.3.7] ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 32373-2025_English be delivered?Answer: Upon your order, we will start to translate GB/T 32373-2025_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 32373-2025?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 32373-2025 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |
