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GB/T 19861-2026Determination of the exchange capacity of acrylic anion exchange resins (English PDF)

丙烯酸系阴离子交换树脂交换容量测定方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

January 28, 2026

Implementation date

August 1, 2026

Scope

GB/T 19861-2026 is the English-translated version of 丙烯酸系阴离子交换树脂交换容量测定方法.

GB/T 19861-2026 is the Chinese standard "Determination of the exchange capacity of acrylic anion exchange resins". Its scope clause reads: This document describes a method for determining the exchange capacity of acrylic anion exchange resins.

This document applies to the determination of the capacity of strong base groups, weak base groups, and weak acid groups in acrylic anion exchange resins. Its clauses include terms and definitions.

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Document preview — GB/T 19861-2026

National Standard of the People's Republic of China

ICS: 83.080
Classification: G 31
Replacing: GB/T 19861-2005

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
1.Scope
2 Normative References
3.Terms and Definitions
4.Method Overview
5 Reagents
6.Instruments and Equipment
7 samples
8.Experimental Procedure
9.Result Calculation and Representation 6.
10 Precision
11 Test Report
Appendix A (Informative) Precision

1 Scope

This document describes a method for determining the exchange capacity of acrylic anion exchange resins.

This document applies to the determination of the capacity of strong base groups, weak base groups, and weak acid groups in acrylic anion exchange resins.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 601 Preparation of Standard Titration Solutions for Chemical Reagents

GB/T 603 Preparation of reagents and products used in chemical reagent test methods

GB/T 5475 Sampling Method for Ion Exchange Resins

GB/T 5757 Method for Determination of Moisture Content in Ion Exchange Resins

GB/T 6682 Specifications and test methods for water used in analytical laboratories

GB/T 8331 Method for Determination of Wet Apparent Density of Ion Exchange Resins

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Standard Form

Under the pretreatment and transformation treatment conditions specified in this document, the ion concentrations of the acrylic anion exchange resin samples obtained after treatment are...

Type/form.

3.2 strong-base group capacity

Under the conditions specified in this document, the acrylic anion exchange resin, based on a unit mass or volume standard, undergoes exchange with a neutral salt solution.

The amount of active groups in the reaction is changed.

Note. Strong base capacity, also known as strong base exchange capacity, is expressed in millimoles per gram (mmol/g) or millimoles per milliliter (mmol/mL).

3.3 weak-base group capacity

Under the conditions specified in this document, the amount of acrylic anion exchange resin that undergoes an acid exchange reaction per unit mass or volume standard is...

Amount of active groups.

Note. Weak base capacity, also known as weak base exchange capacity, is expressed in millimoles per gram (mmol/g) or millimoles per milliliter (mmol/mL).

3.4 weak-acid group capacity

Under the conditions specified in this document, the amount of acrylic anion exchange resin that undergoes an exchange reaction with alkali per unit mass or volume standard is...

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Editions of GB/T 19861

Edition	Title	Revision	Status
GB/T 19861-2026	Determination of the exchange capacity of acrylic anion exchange resins	current edition	Current
GB/T 19861-2005	Determination of the exchange capacity of acrylic anion exchange resins	previous edition	Superseded

This page sells the current edition, GB/T 19861-2026. Earlier editions are listed for reference only.

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