1.1 本试验方法描述了通过测量黑色颜料的反射率来测定白色颜料的相对着色强度的程序。 1.2 本试验方法仅适用于将试验颜料与相同类型和等级的参考标准进行比较。 注1: 试验方法 D332 描述了对蓝色样品进行目视评估的程序。 1.3 以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.4 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。 1.5 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 着色强度是白色颜料最重要的性能之一。该测试方法为质量控制提供了一种测试该特性的方法。 4.2 该试验方法是一种参考方法，建议使用制备分散体的载体和着色用的黑色，但如果买方和卖方都同意更改，则可以使用其他方法。 4.3 用穆勒获得的结果不一定与存在不同分散条件的工业情况一致。然而，用搅拌机分散是一种快速、相对便宜的测试着色强度的方法，用于常规质量控制。

1.1 This test method describes the procedure for determining the relative tinting strength of white pigments by reflectance measurements of black tints. 1.2 This test method is applicable only for comparing the test pigment with a reference standard of the same type and grade. Note 1: Test Method D332 describes a procedure for visual assessment of blue-tinted samples. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 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. 1.5 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 Tinting strength is one of the most important properties of a white pigment. This test method provides a means of testing this property for quality control. 4.2 This test method is a referee method, and the vehicle for preparing the dispersion and the black for tinting are suggested, but others may be used provided both the purchaser and the seller agree to the changes. 4.3 The results obtained with a muller do not necessarily agree with industrial situations where different dispersing conditions exist. However, dispersing with a muller is a fast, relatively inexpensive way of testing tinting strength for routine quality control.