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23.100.60 Word Count Estimation: 26,267 Date of Issue: 2025-08-29 Date of Implementation: 2026-03-01 Older Standard (superseded by this standard): GB/T 32373-2015 Issuing agency(ies): State Administration for Market Regulation; Standardization Administration of China GB/T 32373-2015: Test methods for reverse osmosis membranes---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.Test methods for reverse osmosis membranes ICS 07.060; 23.100.60 J77 National Standards of People's Republic of China Reverse osmosis membrane test method Issued on. 2015-12-31 2016-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThis standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard by the National Standardization Technical Committee membrane (SAC/TC382) and focal points. This standard was drafted. Guiyang Vontron Technology Co., Ltd., Tianjin Polytechnic University, the State Oceanic Administration, Tianjin desalination and comprehensive utilization With the Research Institute, Hangzhou Water Treatment Technology Research and Development Center, China Ocean University, Guiyang City Quality and Technical Supervision, Wudang District of Guiyang City Quality Technology Surgery Supervision Bureau. The main drafters of this standard. Kim Yan, Wangsi Liang, Wang Wei, Zhu Min, Pan Xianhui, Panqiao Ming, Yang Feng, Gao Li, Zhang Yufeng, Zhang Qiang, Luo Min, Yi Xian Ming. Reverse osmosis membrane test method1 ScopeThis standard specifies the test method for flat reverse osmosis membrane thickness uniformity, desalination, water flux, desalting integrity and pressure performance. This standard applies to the reverse osmosis membrane test plate, other forms of reverse osmosis membrane may refer to execution.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 5750.4 drinking water standard test method for sensory and physical parameters GB/T 6672 plastic film and sheet thickness measurement of the mechanical measurements Determination of GB/T 6908 boiler water and cooling water conductivity analysis method GB/T 20103-2006 membrane separation technology terms3 Terms and DefinitionsGB/T 20103-2006 define the following terms and definitions apply to this document. For ease of use, repeat the following list GB/T 20103-2006 relevant terms and definitions. 3.1 Flat membrane flatmembrane Outlook for flat sheet of paper or film. Note. generally flat membrane having a support layer (nonwoven fabric), prepared frame, folding and spiral wound membrane elements are used. [GB/T 20103-2006, the definition 2.1.27] 3.2 Desalination rate saltrejection Represents the removal of the ability to feed the salt solution, expressed as a percentage. NOTE. rewrite GB/T 20103-2006, definitions 2.2.11. 3.3 Water flux waterflux Under certain operating conditions, the unit membrane area per unit time by the amount of water. 3.4 TDS totaldissolvedsolids; TDS Filtered water samples after the water evaporated under specified conditions remaining substance (ie the total amount of dissolved salts in the water, organic matter and colloidal substances). NOTE. When the low organic matter content in water can be approximated by the total salt content, in units of mg/L. [GB/T 20103-2006, the definition 2.3.7] 3.5 Reverse osmosis membrane reverseosmosismembrane Reverse osmosis process for making semi-permeable membrane separating the solvent and solute. [GB/T 20103-2006, the definition 4.1.1] ......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. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 32373-2025_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 32373-2025_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. 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. |
