1.1本标准涵盖了与金相学和金相学测试领域相关的ASTM文件中使用的术语、首字母缩略词和符号的定义。仅与通用词典中充分定义的特定标准相关的术语不在本术语标准中定义。 1.2本标准包括金相学领域使用的术语，例如但不限于:光学显微镜、显微压痕硬度测试、试样制备、x射线和电子金相学、定量金相学、显微照相以及晶粒度和夹杂物含量的测定。 1.3本标准适用于使用E-4委员会标准的个人，以及需要金相学领域术语通用参考源的个人。

1.1 This standard covers the definition of terms, acronyms, and symbols used in ASTM documents related to the field of metallography and metallographic testing. Terms that are only relevant to a particular standard of that are adequately defined in a general dictionary are not defined in this terminology standard. 1.2 This standard includes terminology used in metallographic areas, such as, but not limited to: light microscopy, microindentation hardness testing, specimen preparation, x-ray and electron metallography, quantitative metallography, photomicrography, and determinatin of grain size and inclusion content. 1.3 This standard may be of use to individuals utilizing standards of Committee E-4 as well as by those in need of a general reference souce for terminolgy in the field of metallography.