GB/T 38514-2020 in English

VALID

Test methods for electrodeionization stacks

Issued on:2020-03-06
Implemented on:2021-02-01
File Format:PDF
Delivery:Within 1 day

Price(USD)： $128.00
$125.00

Standard No:	GB/T 38514-2020
Document status:	VALID
Title in English:	Test methods for electrodeionization stacks
Title in Chinese:	电去离子膜堆测试方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Within 1 day
Issued on:	2020-03-06
Implemented on:	2021-02-01
Professional Classification:	GB-National Standard
Related Keywords:	core test items test electrodeionization membrane stacks test methods test system test equipment
Related Topics:	Test Center Ion Trap secondary deionized water Ion membrane instrument Ion test method Membrane separation Cerium ion detection method Method for detecting product ions ion membrane water Cerium ion detection method deionized water deionized water How to use ions Five grade deionized water Membrane stack ionic reagents Membrane method Primary deionized water and secondary deionized water ionic way Ionic membrane thickness Thin film ionic resistance secondary deionization Thin film ionic resistance ic test ion Ammonium ion test method Membrane Test Method Secondary deionized water gb test Ion mode: gb/t17219 maldi ionization method Product ion monitoring Ionic liquid membrane ionic way Secondary deionized water? deionized secondary water deionized water or secondary Electron ion membrane First grade deionized water electron phase separation Electrodeionization ion membrane Deionizer membrane test deionized water heap How to use ions double deionized water Cadmium ion detection method Deionized water meter Deionized water and secondary deionized water Electron Membrane Test Method gb t17219 Zinc ion detection method Leave go ionic method Zinc ion detection method double deionized water icp test ion Deammonium ion Deodorization test Methods for Testing Ion Exchange Membranes Heap Ratio Test Method mercury ion method go test it How to use ion test deionized Deionized water level 3 test ionic equipment t film GBT38514 GB/T 38514-2020 ion Ion separation method Membrane removal of dissolved nitrogen Odd electron ions and even electron ions Soft film peeling test method SPE ion membrane method of ionizing molecules Anion membrane conductivity test method number Fluoride ion tester operation method Centrifugal force test of electronic products Blood copper ion detection method Detection method of aluminum ions Ion source test Ionicity test method Storage method separation membrane Storage method separation membrane Thunder magnetic ion measurement method for lead ions Normirtazapine detection method Electrochemical method to test ionic conductivity Deionized water production method Tertiary deionized water Deionized water quality Withstand voltage test to remove and test leakage Commonly used membrane separation methods Aluminum ion detection method Solid ionic conductivity test method Potassium ion test method Deionized water detection method Deionized water testing Thunder magnetic ion measurement method for chloride ions Comparing electron impact ionization and soft ionization methods Test methods for ionization chambers Pelvic separation test method Dehydrogenation detection method Isolation film breakdown voltage test Ion detection electrochemical method Metal ion detection method Power plant sodium ion method Deionized water deoxygenation method Test method for dry film dissolution capacity Release film aging test Test methods for ion dissolution Classification of membrane separation methods Deionizer national standard Methods for distinguishing cationic membranes and anionic membranes Methods for regulating ions inside and outside the membrane Oil-water separation membrane flux test Film forming speed test method Ionization methods are hard ionization and soft ionization

《GB/T 38514-2020电去离子膜堆测试方法》由TC382（全国分离膜标准化技术委员会）归口，主管部门为国家标准化管理委员会。

Introduction

Evolution of Technical Standards for Electrodeionization Membrane Stacks

As an upgraded standard of HY/T120-2008, GB/T 38514-2020 systematically standardizes the test system of electrodeionization membrane stacks for the first time, forming a technical connection with the terminology definition of GB/T20103-2006. The background of standard formulation stems from the urgent need of the electronic-grade water preparation industry for quantitative evaluation of membrane stack performance.

Analysis of core test items

Test dimensions	GB/T 38514-2020 requirements	Differences in traditional methods
Production water purity	Resistivity ≥15MΩ·cm (online monitoring)	Laboratory sampling and testing
Organic pollution	TOC≤50μg/L (GB/T11446.8)	Unspecified limit
Energy consumption control	kW·h/m³ calculation formula standardization	No unified algorithm

Key test equipment requirements

The standard stipulates that the test equipment must be equipped with a 1.0-level precision flow meter and a 2.0-level resistivity meter, and the pipeline materials must comply with the GB/T17219 sanitation standard. Typical configurations such as precision filters (1μm) can effectively protect the membrane stack from particulate contamination.

Key points of operating specifications

Start-up sequence: open the outlet valve first → start the booster pump → slowly adjust the inlet valve
Stability determination: the resistivity of the produced water must be stable for more than 1 hour before recording data
Safety specifications: The ground impedance test must comply with the requirements of Chapter 18 of GB9706.1-2007

Implementation suggestions

It is recommended that enterprises establish a three-level quality control system:

Raw material stage: verify the conductivity of the ion exchange membrane (refer to Appendix A indicators)
Production process: use this standard for modular testing
Finished product inspection: add 72 hours of continuous operation test

More samples: QC/T 942-2021 JGJ 94-2008 YD/T 3934-2021

Sample only — not a preview of GB/T 38514-2020

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