GB/T 11991-2008 English PDF

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GB/T 11991-2008: Determination of reversible swelling of exchange resins
Status: Valid

GB/T 11991: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 11991-2008	139	Add to Cart	3 days	Determination of reversible swelling of exchange resins	Valid
GB/T 11991-1989	199	Add to Cart	2 days	Ion exchange resins--Determination for swelling upon complete conversion	Obsolete

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Basic data

Standard ID: GB/T 11991-2008 (GB/T11991-2008)
Description (Translated English): Determination of reversible swelling of exchange resins
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G31
Classification of International Standard: 83.080.01
Word Count Estimation: 6,659
Date of Issue: 2008-06-30
Date of Implementation: 2009-02-01
Older Standard (superseded by this standard): GB/T 11991-1989
Quoted Standard: GB/T 5475; GB/T 5476; GB/T 5760; GB/T 6682
Regulation (derived from): National Standard Approval Announcement 2008 No.10 (Total No.123)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the determination of ion exchange resins from an ion- ion type into another type when the volume change of approach. This standard applies to all types of ion exchange resins Swelling determined. For more weak type resins containing groups, according to a weak type resins were determined.

GB/T 11991-2008: Determination of reversible swelling of exchange resins

---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.
Determination of reversible swelling of exchange resins ICS 83.080.01 G31 National Standards of People's Republic of China Replacing GB/T 11991-1989 Swelling resin ion exchange Determination Posted 2008-06-30 2009-02-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard replaces GB/T 11991-1989 "Determination of the ion exchange resin Swelling." Compared with GB/T 11991-1989, this standard text, etc. made editorial changes. The standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee plastic universal methods and products Club (SAC/TC15/SC4) centralized. This standard is mainly drafted by. Xi'an Thermal Power Research Institute, the National Quality Inspection Center of synthetic resin, East Zibo Chemical Co. Shares Company Su Qing water treatment engineering company, Zhejiang Industrial Co., Ltd. to win glory. The main drafters of this standard. Wang Guangzhou-Zhuhai, Di Jinghua, Wang Jiandong, Peng Zhang Hua, Qian Ping, Shen Jianhua. This standard replaces the standards previously issued as follows. --- GB/T 11991-1989. Swelling resin ion exchange Determination

1 Scope

This standard specifies the determination of the ion exchange resin from an ion patterns becomes another ion patterns change in volume method. This standard applies to all types of ion exchange resins Swelling was measured. For more weak type resin containing groups, according to weak-Tree Fat was measured.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 5475 sampling ion exchange resin Resin pretreatment method GB/T 5476 ion exchange Determination of exchange capacity of the resin GB/T 5760 OH anion exchange Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method Summary

Repeatedly treated with acid solution to eliminate resin irreversible after expansion, it will turn into a single ionic resin. Strong resin washed with pure water tree Lipid particles of the external acid or base. Salt form weak acid type resin was washed with corresponding low concentration of alkali solution, so that they end up in (0.005 ~ 0.01) mol/acid, alkali solution L, the volume of the resin was measured irregularly arranged in a graduated cylinder, according to the resin in different ionic under volume Swelling count.

4 instruments and equipment

4.1 Glass-exchange column. with GB/T 5760. 4.2 funnel. with GB/T 5760. 4.3 cylinder. 50.0mL.

5 Reagents and solutions

5.1 hydrochloric acid solution [Ba (HCl) = (1.00 ± 0.01) mol/L]. pure chemical formulation. 5.2 solution of sodium hydroxide [Ba (NaOH) = (1.00 ± 0.01) mol/L]. pure chemical formulation. Hydrochloric acid solution was washed with 5.3 [Ba (HCl) = (0.005-0.01) mol/L]. pure chemical formulation. 5.4 sodium hydroxide washing solution [Ba (NaOH) = (0.005-0.01) mol/L]. pure chemical formulation. 5.5 Reagent water. Reagent meet three water GB/T 6682 regulations.

6 Sample preparation

6.1 Sampling by GB/T 5475 carried out. 6.2 Pretreatment of the sample according to GB/T 5476 carried out. 6.3 taking about 25mL sample into a glass column exchange within the sample layer should be no air bubbles (if any air bubbles out of the agitation with a glass rod). Sample layer The retention level (4 ~ 5) cm. ......

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