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GB/T 42270-2022 English PDF

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US$299.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42270-2022: Test methods of hydrophobic characteristics for porous hydrophobic membrane
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42270-2022	299	Add to Cart	3 days	Test methods of hydrophobic characteristics for porous hydrophobic membrane	Valid

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Basic data

Standard ID: GB/T 42270-2022 (GB/T42270-2022)
Description (Translated English): Test methods of hydrophobic characteristics for porous hydrophobic membrane
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J77
Classification of International Standard: 71.040.99
Word Count Estimation: 14,139
Date of Issue: 2022-12-30
Date of Implementation: 2023-04-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42270-2022: Test methods of hydrophobic characteristics for porous hydrophobic 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.
ICS 71.040.99 CCSJ77 National Standards of People's Republic of China Hydrophobicity Test Method of Porous Hydrophobic Membrane Posted on 2022-12-30 2023-04-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

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 contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents. This document is proposed and managed by the National Standardization Technical Committee of Separation Membrane (SAC/TC382). This document is drafted by. Tianjin University of Technology, Zhejiang Jinmembrane Environmental Technology Co., Ltd., Shanghai Kaixin Separation Technology Co., Ltd., China Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Eco-Environmental Research Center, Chinese Academy of Sciences, Quality and Technical Supervision Standards and Codes of Shunde District, Foshan City Institute, Tianjin Motianmembrane Technology Co., Ltd., Zhejiang University, Guangzhou Institute of Advanced Technology, Beijing Origin Water Separation Membrane Technology Co., Ltd., Beijing Zhongke Ruisheng Resources and Environment Technology Co., Ltd., Lide Membrane (Beijing) New Material Technology Co., Ltd., Jiehai Ruiquan Membrane Technology (Tianjin) Co., Ltd. Company, Sinopec (Beijing) Chemical Research Institute Co., Ltd., Shanghai Jiaotong University, Shandong Zhaojin Motian Co., Ltd., Anhui Zhongke Shenyang Membrane Technology Co., Ltd., Sinochem (Ningbo) Runwo Membrane Technology Co., Ltd., Tianjushi Engineering Technology Group Co., Ltd., Hunan Aowei Technology Co., Ltd. Co., Ltd., Weihai Qingerte Environmental Technology Co., Ltd., Ningxia University, Hangzhou Kebaite Filter Equipment Co., Ltd., Beijing University of Technology, Zhejiang Huiyong New Material Co., Ltd., Shandong Heweijing Technology Co., Ltd., Zhejiang Gertex Environmental Protection Special Material Technology Co., Ltd., Tianjin Motian Membrane Engineering Technology Co., Ltd., Chongqing Moore Water Treatment Equipment Co., Ltd. The main drafters of this document. Lu Xiaolong, Fan Yunshuang, Xu Yinong, Ge Wenyue, Kang Guodong, Wang Jun, Zhou Zhou, Jia Qiuying, Zhang Lin, Wang Xi, Peng Xingzheng, Gao Yonggang, Bi Fei, Zhang Yanping, Zhang Xinmiao, Shao Jiahui, Zhang Weizheng, Wang Xiaolin, Cao Chun, Chen Ping, Bloomberg, Yu Shuili, Wei Yibin, Lu Guoying, Peng Yuelian, Cao Yi, Zhao Lanyu, Jiang Xueliang, Xi Xuejie, Ma Bing, Chen Donggen, Gao Xu, Ren Longfei, An Anfu, Liu Yang, Ma Lanyun. Hydrophobicity Test Method of Porous Hydrophobic Membrane

1 Scope

This document describes the test method for water penetration pressure and critical wetting value of porous hydrophobic membranes. This document is applicable to the separation in which the membrane channel remains in the gas phase or oil phase during the membrane separation process, and the pore size ranges from 0.01 μm to 10.0 μm. Testing of membrane hydrophobic properties.

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. GB/T 6682 Analytical laboratory water specifications and test methods GB/T 32373-2015 Test method for reverse osmosis membrane GB/T 38902-2020 Image Analysis Method for Determination of Sectional Dimensions of Hollow Fiber Membranes YY/T 0282 injection needle

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 During the membrane separation process, the membrane channel remains in the gas phase or oil phase, and the separation membrane has a pore size ranging from 0.01 μm to 10.0 μm. 3.2 Hollow fiber and tubular porous hydrophobic membranes used in a state where the inner surface of the membrane is in contact with the raw material solution. 3.3 Hollow fiber and tubular porous hydrophobic membranes used in a state where the outer surface of the membrane is in contact with the raw material solution. 3.4 liquid pressure The minimum pressure required for water to pass through a porous hydrophobic membrane. Note. The unit is megapascal (MPa). 3.5 critical wetting value The maximum wetting depth at which a porous hydrophobic membrane can self-dehydrate. Note. The unit is micron (μm). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42270-2022_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42270-2022_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 42270-2022_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42270-2022_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+ countries

Question 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.