1.1 本试验方法涵盖了树脂溶液稀释性的体积和重量测定，该测定给出了树脂总溶解度的数值，表示为稀释度百分比。 1.2 只有当试液具有足够的透明度以允许对终点进行准确的视觉判断，并且具有足够低的粘度以进行有效混合时，本试验方法才适用。 1.3 本试验方法主要用于但不限于印刷油墨行业中使用的树脂。 1.4 如果树脂溶液中的溶剂和稀释溶剂相同，则可以使用本试验方法确定树脂的溶剂耐受性百分比。 1.5 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。 1.6 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。 1.7 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 本试验方法为树脂生产商和用户以及溶剂和清漆制造商提供了一种方法，通过指定数值稀释值来评估各种类型树脂的溶解度。该稀释度百分比值可用于区分最终用户的树脂类型，并可作为树脂制造商的质量控制工具。 5.2 在进行一系列此类试验时，必须始终使用同一批或同一批次的稀释溶剂，以确保结果的再现性。

1.1 This test method covers both volumetric and gravimetric determination of resin solution dilutability which gives a numerical value for the overall solubility of the resin expressed as percent dilutability. 1.2 This test method is applicable only if the test solution is of sufficient clarity to allow accurate visual judgement of the end point and of low enough viscosity for efficient mixing to take place. 1.3 This test method is primarily for, but not limited to, resins used in the printing ink industry. 1.4 The percent solvent tolerance of a resin can be determined using this test method if the solvent in the resin solution and the dilution solvent are the same. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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 ====== 5.1 This test method provides a means for resin producers and users as well as solvent and varnish manufacturers to rate various types of resins for solubility by assigning a numerical dilutability value. This percent dilutability value can be used to differentiate resin types for end users and can be utilized as a quality control tool by resin manufacturers. 5.2 When running a series of these tests, the same lot or batch of dilution solvent must be used throughout to ensure reproducible results.