一、概述国家标准 GB11992-89是阴离子交换树脂重要性能的基础测定方法之一。它的测定意义、原理和操作方法都与美国材料与试验协会(ASTM)标准 D 2187-82《粒状离子交换树脂的物理化学特性的试验方法》中。阴离子交换树脂的全交换容量和中性盐分解容量的内容相同。阴离子交换树脂,一般具有强碱性交换基团、弱碱性交换基团。强碱性交换基团通常表示为:式中 X 为可交换的阴离子如:Cl、OH……。弱碱性交换基团通常表示为: First, an overview of national standards GB11992-89 anion exchange resin is one of the important performance measurement methods. Its measuring significance, principle and method of operation are in accordance with the ASTM standard D 2187-82 “Test methods for physicochemical properties of granular ion exchange resins”. The anion exchange resin has the same full exchange capacity as the neutral salt decomposition capacity. Anion exchange resins, generally with strong basic exchange groups, weakly basic exchange groups. Strongly basic exchange groups are generally represented as: wherein X is an exchangeable anion such as: Cl, OH. Weakly basic exchange group is usually expressed as: