1.1这些实践涵盖了四种类型的处理方法，用于铝和铝合金表面的涂装准备，如下所示: 1.1.1 A类——溶剂清洗。 1.1.2 B类-化学处理。 1.1.3 C类阳极处理。 1.1.4 D类——机械处理。如本文所述，这四种类型涵盖了许多程序。 1.2表面处理的变化会产生不同的终止条件，并且在涂覆涂料时不一定产生相同的结果。使用条件将决定应选择的表面处理类型，尽管任何单独方法产生的质量可能因不同合金而异。 1.3 本标准可能涉及危险材料、操作和设备。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。

1.1 These practices cover four types of treatment for preparation of aluminum and aluminum-alloy surfaces for painting, as follows: 1.1.1 Type A-Solvent Cleaning. 1.1.2 Type B-Chemical Treatments. 1.1.3 Type C-Anodic Treatments. 1.1.4 Type D-Mechanical Treatments. These four types cover a number of procedures, as described herein. 1.2 Variations in surface treatment produce end conditions which differ, and which do not necessarily yield identical results when paints are applied. Service conditions will dictate the type of surface preparation that should be selected, although the quality produced by any individual method may vary with different alloys. 1.3 This standard may involve hazardous materials, operations, and equipment. 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.