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GB/T 38511-2020 English PDF

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US$259.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 38511-2020: Evaluation method of service life for hollow fiber membrane
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38511-2020	259	Add to Cart	3 days	Evaluation method of service life for hollow fiber membrane	Valid

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Basic data

Standard ID: GB/T 38511-2020 (GB/T38511-2020)
Description (Translated English): Evaluation method of service life for hollow fiber membrane
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q81
Classification of International Standard: 19.020
Word Count Estimation: 14,180
Date of Issue: 2020-03-06
Date of Implementation: 2021-02-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38511-2020: Evaluation method of service life for hollow fiber 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.
Evaluation method of service life for hollow fiber membrane ICS 19.020 Q81 National Standards of People's Republic of China Hollow fiber membrane service life evaluation method 2020-03-06 release 2021-02-01 implementation State Administration of Market Supervision Published by the National Standardization Administration

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Technical Committee for Standardization of Separation Membrane (SAC/TC382). Drafting organizations of this standard. Tianjin Motian Film Technology Co., Ltd., Guangzhou Institute of Advanced Technology, Chinese Academy of Sciences, Beijing Ketai Xingda High-tech Co., Ltd., Shandong Zhaojin Metian Co., Ltd., Sanda Membrane Technology (Xiamen) Co., Ltd., Harbin Institute of Technology National Engineering Research Center Co., Ltd., Yantai Jinzheng Environmental Protection Technology Co., Ltd., Beijing Bishuiyuan Membrane Technology Co., Ltd., Hainan Lisheng Water Purification Technology Industry Co., Ltd., Hangzhou Qiushi Membrane Technology Co., Ltd., Ningbo Shuiyi Membrane Technology Development Co., Ltd., Tianjin Membrane Membrane Engineering Technology Limited company. The main drafters of this standard. Hu Xiaoyu, Wang Xi, Guo Qinghe, Liang Heng, Wang Le Translation, Hong Yubin, Li Yuebiao, Li Tianyu, Chen Chen, Xie Baiming, Ji Genliang, Liang Yi, Chen Shunquan, Han Ailong, Sun Wenting, Zhang Qing, Liu Yang, Feng Lei. Hollow fiber membrane service life evaluation method

1 Scope

This standard specifies the evaluation method for the service life of hollow fiber membranes for water treatment. This standard applies to the evaluation of the service life of hollow fiber ultrafiltration membranes and hollow fiber microfiltration membranes for water treatment.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods GB/T 20103 Technical terms of membrane separation

3 terms and definitions

The terms and definitions defined in GB/T 20103 and the following apply to this document. For ease of use, the following GB/T 20103 is repeatedly listed Terms and definitions. 3.1 Hollowfibermembrane The appearance is a fibrous, hollow, self-supporting membrane. Note. For reverse osmosis membrane, the cortex is on the outer surface; for ultrafiltration membrane and microfiltration membrane, the cortex is on the inner surface, outer surface or inner and outer surface. [GB/T 20103-2006, definition 2.1.28] 3.2 Microfiltration membrane A separation membrane with a mean pore diameter of 0.01 μm or more. [GB/T 20103-2006, definition 5.1.2] 3.3 Ultrafiltrationmembrane It consists of an extremely thin epidermal layer and a thicker sponge-like or finger-like porous layer that plays a supporting role. Hundreds to millions of membranes. Note 1. The thickness of the epidermal layer is usually only 0.1 μm to 1 μm, and the thickness of the porous layer is usually 125 μm. Note 2. Most ultrafiltration membranes are asymmetric membranes. [GB/T 20103-2006, definition 5.1.1] 3.4 Flux The amount of permeated component per unit membrane area per unit time. [GB/T 20103-2006, definition 2.1.33] 3.5 Transmembrane pressuredifference The pressure difference between the water inlet side and the water production side of the membrane. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38511-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38511-2020_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 38511-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38511-2020_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.