1.1 本规程描述了在粘接试样之前使用的塑料粘附物的表面处理。然而，应注意，本规程仅规定了塑料的预处理条件，不包括试样制备、测试条件或测试评估。具体材料的各种ASTM测试方法或规范中涵盖了这些内容。 1.2 物理治疗 （例如，砂光和溶剂擦拭）用于去除粘合表面的光泽和所有污垢、油脂、脱模或其他污染物的痕迹。 1.3 化学处理 （例如，硫酸 — 重铬酸盐溶液和萘钠络合物）在某些情况下用于化学改变聚合物本身的表面层，以改善其粘附特性。 1.4 以国际单位制表示的数值应视为标准。 括号中给出的值仅供参考。 1.5 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和健康实践，并确定监管限制的适用性。 具体预防说明见 6.1 . 1.6 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 本规程有助于减少塑料的一些表面变化（由于制造方法的差异），否则可能会导致用于测量附着力的ASTM试验方法的结果发生过度变化。 规定的处理方法便于实验室工作。 4.2 本规程不一定旨在为表面提供最佳附着力，并且规定的处理可能并不总是适用于工业用途。 4.3 本规程并未涉及所有可用的表面处理方法；这种做法也没有列举目前可用的所有类型或类别的塑料。 4.4 本规程用作在粘接之前评估塑料被粘物表面处理技术的起点。

1.1 This practice describes surface preparations for plastic adherends, to be used prior to adhesive bonding of test specimens. It should be noted, however, that this practice specifies only the pretreating conditions of the plastic and does not cover the preparation of test specimens, testing conditions, or evaluation of tests. These are covered in the various ASTM test methods or specifications for specific materials. 1.2 Physical Treatments (for example, sanding and solvent wiping) are used in order to remove the glossy finish and all traces of dirt, grease, mold release, or other contaminants from the bonding surfaces. 1.3 Chemical Treatments (for example, sulfuric acid — dichromate solution and sodium naphthalene complex) are used in some cases to alter chemically the surface layers of the polymer itself to improve its adhesion characteristics. 1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5 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 and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 6.1 . 1.6 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 practice is useful for reducing some of the surface variability of plastics (due to differences in manufacturing methods) that might otherwise cause excessive variation in the results of ASTM test methods designed to measure adhesion. The treatments specified are convenient for laboratory work. 4.2 This practice is not necessarily designed to provide optimum adhesion to the surfaces and the treatments specified may not always be practical for industrial use. 4.3 This practice does not address all of the surface preparation methods available; nor does this practice cite all of the types or classes of plastics currently available. 4.4 This practice is used as a starting point for evaluating surface preparation techniques for plastic adherends prior to adhesive bonding.