1.1 本试验方法包括测定水溶性溶剂与水的混溶性。虽然专门用于测试丙酮、异丙醇（异丙醇）和甲醇（甲醇），但该方法适用于测试大多数水溶性溶剂。 1.2 该试验方法用于定性检测与水不混溶的污染物；这些杂质的检测水平随着溶剂的类型和杂质的类型而变化很大。 1.3 水不溶性物质的检测水平取决于测试的溶剂和存在的一种或多种杂质的类型，即石蜡、烯烃、芳香族、高分子量醇或酮等。因此，该程序没有检测到特定水平的杂质。 注1: 该试验方法通常在环境温度下进行，但也可根据消费者和供应商的规定使用其他温度。 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 有关具体的危险信息和指南，请参阅本试验方法中列出的材料的供应商安全数据表。 1.6 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。 1.7 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 存在于溶剂中的水不溶性材料预计是完全与水混溶的，可能会干扰溶剂的许多用途。该测试方法提供了水溶性溶剂与极性介质水的混溶性的测量。它还提供了存在或不存在与水不混溶的污染物的定性指示。 4.2 该试验方法的结果可用于评估是否符合规范。在同意将该测试方法作为规范要求的基础之前，供应商和买方可能需要就云量或浊度的构成解释达成一致。

1.1 This test method covers the determination of the miscibility of water-soluble solvents with water. While written specifically for testing acetone, isopropyl alcohol (isopropanol), and methyl alcohol (methanol), the method is suitable for testing most water-soluble solvents. 1.2 This test method serves to detect water-immiscible contaminants qualitatively; the level of detection of these impurities varies widely with both the type of solvent and the type of impurity. 1.3 The level of detection of water-insoluble materials depends upon the solvent tested and the type of impurity or impurities present, that is paraffin, olefin, aromatic, high molecular weight alcohol, or ketone, etc. There is, therefore, no specific level of impurity detected by this procedure. Note 1: This test method is normally performed at ambient, but other temperatures may be used as specified by the consumer and supplier. 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 For specific hazard information and guidance, consult the supplier’s Safety Data Sheet for materials listed in this test method. 1.6 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. 1.7 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 Water-insoluble materials present in a solvent expected to be completely water miscible may interfere with many uses of the solvent. This test method provides a measure of the miscibility of water-soluble solvents with a polar medium-water. It also provides a qualitative indication of the presence or absence of water-immiscible contaminants. 4.2 The results of this test method may be used in assessing compliance with a specification. Prior to agreeing to this test method as the basis of a specification requirement, it may be desirable that the interpretation of what constitutes cloudiness or turbidity be agreed upon between the supplier and the purchaser.