标准摘要
[中文适用范围]： 本文件规定了从破碎煤样中制备抛光颗粒块的方法，以便通过反射光显微镜进行分析。这些方法也可用于制备抛光嵌入的煤块。 [外文原描述]： This document specifies methods for preparing a polished particulate block from a sample of crushed coal for analysis by reflected light microscopy. These methods can also be applied to the preparation of a polished, embedded lump of coal.
英文名称Coal — Methods for petrographic analysis — Part 2: Method of preparing coal samples