1.1 本试验方法涵盖了通过在涂层表面安装和移除金属螺柱，并用拉力测试仪测量破坏涂层/基材粘结所需的力，来实验室测定有机涂层与塑料基材的粘附力。本试验方法也适用于塑料以外的基材。 1.2 本试验方法要求金属螺柱直接粘附在涂层固化面板的表面( 图1 ). 图1 直接拉伸模型 1.3 本试验方法用于比较涂层与塑料或其他基材的附着力，从而允许在实验室条件下对各种涂层/基材组合进行定量比较。 1.4 其他拉伸试验方法为试验方法 D4541 , D7234 , D7522 ，和ISO 4624（但在技术上并不等同）。 1.5 以国际单位制表示的数值应视为标准值。括号中给出的值是英寸-磅单位的数学转换，仅供参考，不被视为标准值。 1.6 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。 1.7 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====== 4.1 涂层的剥离强度（通常称为附着力）是规范中使用的一个重要性能。本试验方法可作为在塑料或其他基材上均匀制备和测试有机涂层的方法。 4. 更多信息请参见 附录X1 .

1.1 This test method covers the laboratory determination of organic coating adhesion to plastic substrates by mounting and removing a metal stud from the surface of the coating and measuring the force required to break the coating/substrate bond with a tensile tester. This test method may also be applied to substrates other than plastic. 1.2 This test method requires that the metal stud be adhered directly to the surface of a coated, cured panel ( Fig. 1 ). FIG. 1 Direct Tensile Model 1.3 This test method is used to compare the adhesion of coatings to plastic or other substrates, thus allowing for a quantitative comparison of various coating/substrate combinations in laboratory conditions. 1.4 Other tensile test methods are Test Methods D4541 , D7234 , D7522 , and ISO 4624 (but are not technically equivalent). 1.5 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. 1.6 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. 1.7 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 The pull-off strength (commonly referred to as adhesion) of a coating is an important performance property that has been used in specifications. This test method serves as a means for uniformly preparing and testing organic coatings on plastic or other substrates. 4 Further information may be found in Appendix X1 .