1.1 本试验方法确定盐分解阴离子交换材料和盐分解阳离子交换材料的物理混合物中存在的阴离子交换容量当量和阳离子交换容量当量之间的比率。 1.2 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。 ====意义和用途====== 5.1 本试验方法适用于以混合物形式出售的新材料的分析，以及从含有阴离子混合物的可再生装置中采集的样品- 交换和阳离子交换材料。它用于确定成分的比例，而不将它们彼此分离。 5.2 本试验方法适用于具有盐分解能力的离子交换材料混合物，如试验方法和实践中的试验方法E所测量 D2187 阳离子交换树脂和阴离子交换树脂的试验方法H。就阳离子交换树脂而言，它们是具有磺酸官能团的苯乙烯基聚合物。这类阴离子交换材料是苯乙烯- 具有季铵官能团的基材料。该测试方法将确定混合物中任何功能性阴离子交换材料的量。然而，当存在非盐裂的阴离子基团时，由于阴离子流出物的酸性，阳离子基团的值将很高。未测量不分裂盐的阳离子基团。 5.3 样品在收到时按本试验方法进行分析。阳离子交换树脂不一定是氢形式，也不一定是阴离子- 对于本试验方法，交换树脂应为氢氧化物形式。 5.4 本试验方法可用于确定新材料是否平衡以满足其规范值。在运行可再生装置时，它可用于确定组件是否正确分离或重新混合。它也可用于检查垫层中的不平衡或操作过程中组件的损失。 5.5 本试验方法从氢和氯化物的转化开始。然而，它可以与通过硝酸钠洗脱测定残留氯化物和硫酸盐位置相结合，如测试方法和实践中的测试方法J和L所述 D2187 . 在这种情况下，氢离子和氯离子在第二次硝酸钠洗脱中测定，如《试验方法和实施规程》的试验方法一所述 D2187 本文给出的计算是使用如此确定的滴定值进行的。

1.1 This test method determines the ratio between the equivalents of anion-exchange capacity and the equivalents of cation-exchange capacity present in a physical mixture of salt-splitting anion-exchange material and salt-splitting cation-exchange material. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 This test method is applicable to the analysis of new materials that are sold as mixtures and to samples taken from regenerable units containing mixtures of anion-exchanging and cation-exchanging materials. It is used to determine the ratio of the components without separating them from each other. 5.2 This test method is intended for mixtures of ion-exchange materials that have salt-splitting capacity as measured by Test Method E of Test Methods and Practices D2187 for cation-exchange resins, and Test Method H for anion-exchange resins. In the case of cation-exchange resins, these are styrene-based polymers with sulfonic acid functional groups. The anion-exchanging materials in this class are styrene-based materials with quaternary ammonium functional groups. The test method will determine the amount of anion-exchange material of any functionality present in the mixture. However, when anionic groups that are not salt-splitting are present, the values for cationic groups will be high due to the acidic character of the anion effluent. Cationic groups that do not split salts are not measured. 5.3 Samples are analyzed in this test method as received. It is not necessary that the cation-exchanging resin be in the hydrogen form and the anion-exchanging resin be in the hydroxide form for this test method. 5.4 This test method may be used to determine if new materials are balanced to meet their specification values. In operating regenerable units, it may be used to determine if the components are separating properly or remixing properly. It may also be used to check for improper balance in bedding or for loss of a component during operation. 5.5 This test method begins with the conversion to the hydrogen and chloride forms. However, it may be combined with the determination of the residual chloride and sulfate sites by elution with sodium nitrate as described in Test Methods J and L in Test Methods and Practices D2187 . In such cases the hydrogen ion as well as the chloride ion is determined in the second sodium nitrate elution described in Test Method I of Test Methods and Practices D2187 , and the calculations given herein are made using the titration values so determined.