1.1 本试验方法包括测定合成蜡和天然蜡的皂化值。 1.2 本试验方法适用于费托蜡、微晶蜡、聚乙烯蜡和蒙坦酯蜡。 1.3 某些合成蜡，尤其是乙烯共聚物，在皂化值运行时表现出较差的再现性。如果烹饪时间在 7.2 从3小时延长到18-20小时。 1.4 熔融温度高于100°C的一些氧化聚乙烯和其他蜡的再现性可能较差。 1.5 一些深色（加德纳色14）蜡可能会掩盖指示剂的颜色变化，导致再现性差。 1.6 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。 1.7 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。 1.8 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====== 4.1 本试验方法用于确定酯功能性的特性。酯的功能性决定了蜡的用途，也是一项重要的质量控制测试。

1.1 This test method covers the determination of the saponification number of synthetic waxes and natural waxes. 1.2 This test method is applicable to Fischer Tropsche, microcrystalline, polyethylene, and Montan Ester waxes. 1.3 Certain synthetic waxes, notably copolymers of ethylene, exhibit poor reproducibility when running saponification values. Reproducibility can be improved if cooking time in 7.2 is extended from 3 h to 18–20 h. 1.4 Some oxidized polyethylene and other waxes with a melt temperature above 100°C may give poor reproducibility. 1.5 Some dark-colored (Gardner Color 14) waxes may obscure the color change of the indicator, resulting in poor reproducibility. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 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. 1.8 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 ====== 4.1 This test method is used to determine the property of ester functionality. Ester functionality determines the utility of the wax as well as being a significant quality control test.