1.1 本试验方法包括使用颜色测量仪器对透明、黄色/棕色液体材料的颜色进行定量测定。如果使用其他材料，结果可能无效。该测试使用测试方法中描述的Gardner色标 第1544天 本试验方法适用于松化工产品，包括妥尔油松香、树胶松香、木松香及相关产品。 1.2 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。 1.3 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。 1.4 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 该测试方法提供了一种比测试方法中描述的更精确的加德纳颜色测量方法 第1544天 它适用于具有Gardner 1至Gardner 18颜色的松香产品。Gardner等级不适用于颜色小于1或大于18的材料。

1.1 This test method covers the quantitative determination of the color of clear, yellow/brown, liquid materials using color measuring instruments. The results may be invalid if other materials are used. The test uses the Gardner color scale described in Test Method D1544 . This test method applies to pine chemical products including tall oil rosin, gum rosin, wood rosin and related products. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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. 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 ====== 4.1 This test method provides a more precise way of measuring Gardner color than described in Test Method D1544 . It is applicable to rosin products having colors from Gardner 1 to Gardner 18. The Gardner scale is not applicable to materials with colors lighter than 1 or darker than 18.