1.1 本试验方法包括测定乳液地板抛光剂薄膜在应用于基材后的60°镜面光泽。 注1: 镜面光泽是产生光泽感的几个相关外观属性之一。由于这个原因，镜面光泽度测量可能并不总是与光泽度的视觉排名很好地相关。 1.2 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。 1.3 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 当测量以60°角反射的光时，此测试方法可用于评估乳液地板抛光剂干燥薄膜的光泽度差异。在60°角度下，可能无法区分极高光泽或低光泽抛光。 A20 根据试验方法测量的角度 D523 可以给出更好的光泽定义。

1.1 This test method covers the determination of the 60° specular gloss of films of emulsion floor polish after application to a substrate. Note 1: Specular gloss is one of several related appearance attributes that produce the sensation of glossiness. For this reason, specular gloss measurements may not always correlate well with visual rankings of glossiness. 1.2 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. 1.3 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 may be used to evaluate the difference in gloss of dried films of emulsion floor polishes when the light reflected at a 60° angle is measured. Extremely high- or low-gloss polishes may not be differentiated at a 60° angle. A20 ° angle measured in accordance with Test Method D523 may give better definition of gloss.