1.1 本试验方法包括测定塑料板和电绝缘材料的粘合强度或层间粘合强度。它适用于层压和非层压热塑性和热固性材料。 1.2 通过本试验方法获得的试验数据相关且适用于工程设计。 1.3 以国际单位制表示的数值应视为标准值。国际单位制后括号中给出的值仅供参考，不被视为标准值。 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。 注1: 没有已知的ISO等效于本标准。 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====== 4.1 当应用于层压塑料时，该试验是在垂直于层压平面的方向上测量层间或层内强度（以较小者为准）。当应用于非层压塑料时，该测试是对材料内聚强度的测量。确定的特性是基本的，尚未与任何其他粘结强度方法的结果相关联。 4.2 该测试在以下方面可能有用:( 1. )研究自变量变化影响时的研究测试( 2. )规范测试，或( 3. )裁判测试。 4.3 在继续使用本试验方法之前，请参考被测材料的规格。 相关ASTM材料规范中涵盖的任何试样制备、调节、尺寸或测试参数或其组合应优先于本试验方法中的试样制备、调节、尺寸或测试参数或其组合。如果没有相关的ASTM材料规范，则默认条件适用。 表1 分类系统的 D4000 列出了当前存在的ASTM材料标准。 （A） ν r 是平均值的实验室内标准偏差，表示为所列平均值的百分比。 （B） ν R 是平均值的实验室间标准偏差，表示为所列平均值的百分比。

1.1 This test method covers the determination of the bond strength or ply adhesion strength of sheet plastic and electrical insulating materials. It is applicable to both laminated and nonlaminated thermoplastic and thermosetting materials. 1.2 Test data obtained by this test method is relevant and appropriate for use in engineering design. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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. Note 1: There is no known ISO equivalent to this standard. 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 ====== 4.1 This test, when applied to laminated plastics, is a measure of the interlaminar or intralaminar strength, whichever is smaller, in a direction normal to the plane of the laminate. When applied to nonlaminated plastics, the test is a measure of the cohesive strength of the material. The property determined is fundamental and has not yet been correlated with the results of any other method for bond strength. 4.2 The test is potentially useful as ( 1 ) a research test when studying the effects of changes in independent variables, ( 2 ) a specification test, or ( 3 ) a referee test. 4.3 Before proceeding with this test method, make reference to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions or testing parameters or combination thereof covered in the relevant ASTM materials specification shall take precedence over those in this test method. If there are no relevant ASTM material specifications then the default conditions apply. Table 1 of Classification System D4000 lists the ASTM materials standards that currently exist. (A) ν r is the within-laboratories standard deviation of the mean, expressed as a percentage of the listed average. (B) ν R is the between-laboratories standard deviation of the mean, expressed as a percentage of the listed average.