1.1这些试验程序描述了宏观蚀刻金属和合金以揭示其宏观结构的方法。 1.2以英寸-磅为单位的数值应视为标准值。英寸-磅单位的国际单位制等效物可能是近似值。 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。 有关具体的警告声明，请参阅6.2、7.1、8.1.3、8.2.1、8.8.3、8.10.1.1和8.13.2。

1.1 These test procedures describe the methods of macro- etching metals and alloys to reveal their macrostructure. 1.2 The values stated in inch-pound units are to be regarded as the standard. The SI equivalents of inch-pound units may be approximate. 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 and health practices and determine the applicability of regulatory limitations prior to use. For specific warning statements, see 6.2, 7.1, 8.1.3, 8.2.1, 8.8.3, 8.10.1.1, and 8.13.2.