1.1 本规程涵盖了评估金属涂层在各种物质上附着力的简单定性测试。 1.2 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.3 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。 1.4 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====== 2.1 这些测试对于产品的生产控制和验收测试非常有用。 2.2 解释用于确定金属涂层附着力的定性方法的结果经常是一个有争议的主题。如果使用了一项以上的测试，则任何一项测试都不合格。在许多情况下，涂层制品的最终用途或其制造方法将表明最能代表功能要求的技术。例如，随后要成型的物品将建议进行拉伸或弯曲测试；将被焊接或以其他方式暴露于热的物品将建议进行热淬火测试。如果零件需要在电镀后进行烘焙或热处理，则应在此类后处理后进行附着力测试。 2.3 一些测试仅限于特定类型的涂层、厚度范围、延展性或基材成分。这些限制通常在测试说明中说明，并在 表1 用于某些金属涂层。 （A） +适当；−不合适。 2.4 如果涂层和基底之间的结合大于两者的内聚强度，则存在“完美”附着力。如果遵循良好的电镀实践，通常可以获得这种附着力。 2.5 出于许多目的，附着力测试的目的是检测任何低于“完美”的附着力。在这种测试中，人们使用任何可用的手段试图将涂层与基材分离。这可能是撬动、锤击、弯曲、敲打、加热、锯切、研磨、拉拔、划线、凿除或这些处理的组合。 如果涂层从基底上剥落、剥落或剥离，则附着力不太理想。 2.6 如果需要评估附着力，可能需要使用以下一种或多种测试。这些测试具有不同程度的严重性；并且可以用于在特定应用中区分令人满意的粘合和不令人满意的粘附。必须确定每种情况的选择。 2.7 当本指南用于验收时，必须指定要使用的一种或多种方法。由于边缘附着力情况下的试验结果可能会有解释，因此应就可接受的内容达成一致。 2.8 如果待测试项目的尺寸和形状妨碍了指定测试的使用，则等效的测试板可能是合适的。如果允许，试板的材料和表面光洁度应与待测项目相同，并应通过 相同的 预镀、电镀和电镀后循环作为它们所代表的部分。

1.1 This practice covers simple, qualitative tests for evaluating the adhesion of metallic coatings on various substances. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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. 1.4 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 ====== 2.1 These tests are useful for production control and for acceptance testing of products. 2.2 Interpreting the results of qualitative methods for determining the adhesion of metallic coatings is often a controversial subject. If more than one test is used, failure to pass any one test is considered unsatisfactory. In many instances, the end use of the coated article or its method of fabrication will suggest the technique that best represents functional requirements. For example, an article that is to be subsequently formed would suggest a draw or a bend test; an article that is to be soldered or otherwise exposed to heat would suggest a heat-quench test. If a part requires baking or heat treating after plating, adhesion tests should be carried out after such posttreatment as well. 2.3 Several of the tests are limited to specific types of coatings, thickness ranges, ductility, or compositions of the substrate. These limitations are noted generally in the test descriptions and are summarized in Table 1 for certain metallic coatings. (A) + Appropriate; − not appropriate. 2.4 “Perfect” adhesion exists if the bonding between the coating and the substrate is greater than the cohesive strength of either. Such adhesion is usually obtained if good electroplating practices are followed. 2.5 For many purposes, the adhesion test has the objective of detecting any adhesion less than “perfect.” For such a test, one uses any means available to attempt to separate the coating from the substrate. This may be prying, hammering, bending, beating, heating, sawing, grinding, pulling, scribing, chiseling, or a combination of such treatments. If the coating peels, flakes, or lifts from the substrate, the adhesion is less than perfect. 2.6 If evaluation of adhesion is required, it may be desirable to use one or more of the following tests. These tests have varying degrees of severity; and one might serve to distinguish between satisfactory and unsatisfactory adhesion in a specific application. The choice for each situation must be determined. 2.7 When this guideline is used for acceptance inspection, the method or methods to be used must be specified. Because the results of tests in cases of marginal adhesion are subject to interpretation, agreement shall be reached on what is acceptable. 2.8 If the size and shape of the item to be tested precludes use of the designated test, equivalent test panels may be appropriate. If permitted, test panels shall be of the same material and have the same surface finish as the item to be tested and shall be processed through the same preplating, electroplating, and postplating cycle as the parts they represent.