1.1 本试验方法包括使用颜色测量仪器定量测定透明、黄色/棕色液体材料的颜色。如果使用其他材料，结果可能无效。测试使用测试方法中描述的加德纳色阶 第1544页 本试验方法适用于松树化学产品，包括妥尔油、妥尔油脂肪酸、松香和相关产品。 1.2 以国际单位制表示的值应视为标准值。本标准不包括其他测量单位。 1.3 本标准并不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建立适当的安全、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（TBT）委员会发布的《国际标准、指南和建议制定原则决定》中确立的国际公认标准化原则制定的。 =====意义和用途====== 4.1 该测试方法提供了比测试方法中描述的更精确的加德纳颜色测量方法 第1544页 。适用于颜色从Gardner 1到Gardner 18的松木化学产品。Gardner等级不适用于颜色比1浅或比18深的材料。

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, tall oil fatty acids, 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 pine chemical 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.