1.1本试验方法涵盖径向剖切技术 2,3,4 用于测量金属、合金、碳化物和氧化物上由多种工艺制成的薄表面层的厚度。 1.2本试验方法适用于各种表面层类型的测量，其中层和基板之间的界面可通过自然颜色或反射率差异或通过蚀刻或染色引起的颜色或反射率差异来识别。 1.3本试验方法不适用于通过成分变化分析进行的层厚度测量。 1.4本试验方法仅涉及推荐的试验方法，其中任何内容均不得解释为定义或确定任何涂层方法的可接受极限。 1.5所述测量值采用公制，如标准E380中所定义。 1.6 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。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。 有关具体的预防说明，请参阅第7节。

1.1 This test method covers the radial sectioning technique 2,3,4 for measurement of the thickness of thin surface layers, made by a wide variety of processes, on metals, alloys, carbides, and oxides. 1.2 This test method is applicable to measurement of a wide variety of surface layer types where the interface between the layer and substrate is discernible by natural color or reflectivity differences or by means of color or reflectivity differences due to etching or staining. 1.3 This test method does not pertain to layer thickness measurements made by analysis of compositional variations. 1.4 This test method deals only with the recommended test method and nothing in it should be construed as defining or establishing limits of acceptability for any coating method. 1.5 The measurement values stated are in the metric system, as defined in Standard E380. 1.6 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems 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. For specific precautionary statements, see Section 7.