1.1 这种做法决定了油漆在小区域重新涂覆或“润色”的能力。导致与原始油漆不同外观的颜色、光泽和光泽的变化可以通过视觉或用仪器测量光泽或颜色来评估。 1.2 本实践描述了与全尺寸现场环境相反的实验室规模受控环境中润色特性的评估。 1.3 描述了在恒定干燥条件下的润色性能的评估。可以调节环境条件以结合高温或低温干燥或两者。与在相同环境条件下施加两种涂层相比，施加温度的变化会导致更大的润色差异。 1.4 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。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法规限制的适用性。 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====== 5.1 在房屋建造过程中，油漆会经历各种各样的干燥条件，这可能会在原始涂层和完全固化后的修补区域的外观上表现出差异。因此，涂料必须能够在各种干燥条件下工作。做到这一点的油漆对承包商非常有利。 5.2 一种油漆可能有很好的颜色润色，但光泽润色很差，反之亦然。理想的油漆在测试条件下将具有出色的颜色和光泽。 5.3 颜色、光泽和底漆的选择会对油漆的润色产生重大影响。

1.1 This practice determines the ability of a paint to be recoated or “touched up” in small areas. Variations in color, gloss, and sheen that result in a different appearance from the original paint may be evaluated visually or with instrumentation to measure gloss or color. 1.2 This practice describes evaluation of touch-up characteristics in a laboratory-scale controlled environment as opposed to a full-scale field environment. 1.3 Evaluation of touch-up properties under constant drying conditions is described. Environmental conditions can be adjusted to incorporate high or low temperature drying, or both. The changes in application temperature can lead to larger differences in touch-up than applying both coats under the same environmental conditions. 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 During construction of a home, paints are subjected to a wide variety of drying conditions, and this may exhibit differences between the original coat and the touched-up area in appearance after its full cure. Therefore, it is essential for the paint to be able to perform under a wide variety of drying conditions. A paint that does this is very advantageous to the contractor. 5.2 It is possible for a paint to have excellent color touch-up, but poor sheen touch-up, or vice-versa. The ideal paint will have both excellent color and sheen touch-up under testing conditions. 5.3 Color, gloss and base choice can have a major impact on touch-up of the paint.