1.1 本试验方法包括用乙二胺四乙酸二钠盐（EDTA）滴定法测定可溶解在甲苯醇混合物中的液态钙干燥剂中的钙和液态锌干燥剂中的锌。 1.2 该试验方法不适用于更干燥的混合物。 1.3 在碱性介质中可以用EDTA滴定的所有阳离子都会干扰，且不得存在于样品中。 1.4 以国际单位制表示的数值应视为标准。 本标准中不包括其他计量单位。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者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。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ====意义和用途====== 4.1 本试验方法可用于确认可溶于甲苯醇的纯液态钙或锌干燥剂中所述的钙或锌含量，该干燥剂由涂料行业制造。

1.1 This test method covers a titrimetric determination of calcium in liquid calcium driers and zinc in liquid zinc driers that can be dissolved in a toluene-alcohol mixture and utilizes the disodium salt of ethylenediaminetetraacetic acid dihydrate (EDTA). 1.2 This test method is not applicable to drier blends. 1.3 All cations that can be titrated with EDTA in alkaline media interfere and must not be present in the sample. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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 may be used to confirm the stated calcium or zinc content of pure liquid calcium or zinc driers soluble in toluene-alcohol and manufactured for use by the coatings industry.