1.1 本规程涵盖了使用为低粘度涂料设计的涂料涂敷器生产艺术家管涂料和其他非流动着色涂料的均匀薄膜。 1.2 包括如何从这些涂料中获得不透明样本的信息。 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。 1.5 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 艺术家颜料的质量标准要求评估漆膜的各种外观特征。着色强度测定（试验方法 D4838 )具体要求准备色度测量的提取。其他评估，如颜色指定、透明度、光泽度和色差测量，也需要提取样本。 5.2 艺术家的管涂料具有糊状稠度，这使得传统的涂膜方法难以使用，尤其是在干燥油漆时。 5.3 艺术家的颜料在两个对薄膜制备很重要的特性上有所不同，即透明度和干燥时间。色度测定和一些其他类型的评估需要完全隐藏基材的油漆样本。 非常透明的油漆需要如此厚的薄膜才能完全遮盖，以至于干燥时间过长或样品表面有瑕疵。当需要完全隐藏时，这种做法旨在通过应用一系列薄膜来提供没有这些缺陷的不透明薄膜。

1.1 This practice covers the production of uniform films of artists’ tube paints and other nonflowing pigmented paints using paint applicators designed for less viscous paints. 1.2 Information on how to achieve opaque specimens from these paints is included. 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 ====== 5.1 Quality standards for artists' paints require the evaluation of various appearance characteristics of paint films. Tinting strength determination (Test Method D4838 ) specifically requires the preparation of drawdowns for colorimetric measurement. Other evaluations such as color designation, transparency, gloss, and color difference measurements also require drawdown samples. 5.2 Artists’ tube paints have a paste consistency that makes the use of traditional film application methods difficult, especially for drying oil paints. 5.3 Artists' paints vary in two properties important to the preparation of films, that is, transparency and drying time. Colorimetric determination and some other types of evaluation require paint specimens that completely hide the substrate. Very transparent paints require such a thick film to produce complete hiding that drying times is excessively long or the specimen surface is blemished. When complete hiding is necessary, this practice is designed to provide opaque films without these defects through application of a series of thin films.