1.1 本试验方法涵盖了评估应用于平坦刚性表面的高光泽涂层的相对耐擦伤性的程序。介绍了湿摩擦和干摩擦磨损试验。为了充分表征涂层的耐擦伤性，应进行两项测试。 注1: 也可以使用测试方法评估干摩擦耐擦伤性 D6037 . 如果正在评估耐擦伤性极高的涂层，则应使用试验方法 D6037 通常会提供比此处描述的干摩擦测试更好的性能判别。但是，如果试验方法中描述的设备 D6037 不可用，本试验方法中描述的干摩擦试验提供了合理的替代方案。干摩擦试验也有助于评估耐擦伤性不高的涂层。 1.2 通过测量磨损和未磨损区域的光泽来评估耐擦伤性。 耐擦伤性与涂层在磨损区域保持光泽的能力直接相关。 注2: 通过本试验方法获得的耐擦伤性值没有绝对意义。它们只能用于推导从当前正在评估的一系列涂层中制备的试板的相对性能排名。如果实验室之间引用了耐擦伤性值，则必须测量一个通用标准，并将这些值与该标准进行比较。即使如此，也应谨慎使用这些值。 1.3 以国际单位制表示的数值应视为标准值。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 涂料，特别是用于汽车、船只、玩具等的高光泽涂料，在制造和服务过程中会受到各种条件的影响（例如，擦拭、清洁和暴露），这些条件可能会损坏其表面。高光泽涂层保持外观的能力是产品的一个重要属性。该测试方法提供了一种评估高光泽涂层抗损伤能力的方法。

1.1 This test method covers procedures for evaluating the relative mar resistance of a high gloss coating applied to a flat, rigid surface. Wet rub and dry rub abrasion tests are described. To fully characterize a coating's mar resistance, both tests should be run. Note 1: Dry abrasion mar resistance can also be evaluated by using Test Methods D6037 . If a very highly mar resistant coating is being evaluated, Test Methods D6037 will generally provide the better performance discrimination than the dry rub test described here. However, if the equipment described in Test Methods D6037 is not available, the dry rub test described in this test method affords a reasonable alternative. The dry rub test is also useful for evaluating coatings that are not highly mar resistant. 1.2 Mar resistance is assessed by measuring the gloss of the abraded and unabraded areas. Mar resistance is directly related to the coating’s ability to retain gloss in abraded areas. Note 2: The mar resistance values obtained by this test method have no absolute significance. They should only be used to derive relative performance rankings for test panels that have been prepared from the series of coatings that are currently being evaluated. If mar resistance values are quoted between laboratories, it is essential that a common standard be measured and that the values be compared to that standard. Even then, the values should be used with caution. 1.3 The values stated in SI units are to be regarded as 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 Coatings, particularly the high gloss coatings used on automobiles, boats, toys, etc., are subject to a wide variety of conditions (for example, wiping, cleaning and exposure) during manufacture and service that can mar their surface. The ability of high gloss coatings to maintain their appearance is an important product attribute. This test method provides a way to estimate the ability of high gloss coatings to resist mar damage.