1.1 这些试验方法包括液体环氧树脂中易水解氯化物含量的测定，液体环氧树脂被定义为氯醇和双功能或多功能酚醛化合物的反应产物。 注1: 没有已知的ISO等效于本标准。 1.1.1 在试验方法A中，易水解的氯化物用氢氧化钾皂化，并用盐酸直接滴定。该试验方法可用于1重量的浓度 % 及以下。 1.1.2 在试验方法B中，易水解氯化物再次用氢氧化钾皂化，然后用硝酸银电位滴定。本试验方法可用于浓度为5至2500 ppm的可水解氯化物。 1.2 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 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。 有关具体的危险说明，请参阅第节 10 和 16 . 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 液体环氧树脂的可水解氯化物含量是决定其反应性和由其制成的涂料性能的重要变量。这些测试方法可用于确定制造的环氧树脂的可水解氯化物含量，并确认所购环氧树脂的规定可水解氯化物含量。

1.1 These test methods cover the determination of the easily hydrolyzable chloride content of liquid epoxy resins which are defined as the reaction product of a chlorohydrin and a di- or polyfunctional phenolic compound. Note 1: There is no known ISO equivalent to this standard. 1.1.1 In Test Method A, the easily hydrolyzable chloride is saponified with potassium hydroxide and directly titrated with hydrochloric acid. This test method can be used for concentrations of 1 weight  % and below. 1.1.2 In Test Method B, the easily hydrolyzable chloride is again saponified with potassium hydroxide, then titrated potentiometrically with silver nitrate. This test method can be used for concentrations of 5 to 2500 ppm hydrolyzable chloride. 1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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. For specific hazard statements see Sections 10 and 16 . 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 The hydrolyzable chloride content of liquid epoxy resins is an important variable in determining their reactivity and the properties of coatings made from them. These test methods may be used to determine the hydrolyzable chloride content of manufactured epoxy resins and confirm the stated hydrolyzable chloride content of purchased epoxy resins.