标准摘要
[中文适用范围]： 本文件规定了一种确定煤中大组分（如需，还包括矿物质）比例的方法。该方法仅适用于使用入射白光对抛光颗粒块进行测定的情况。对于低煤阶煤，还需使用荧光模式来识别脂质组分。 [外文原描述]： This document specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. It is concerned only with determinations made on polished particulate blocks using incident white light. For lower-rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.
英文名称Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition