标准摘要
[中文适用范围]： 本文件规定了一种使用具有20个交叉线交点的网格方法，用于确定煤中微粒岩型、碳矿石和矿石的比例。该方法仅适用于在抛光颗粒块上使用反射白光进行测定的情况。为了在荧光下更好地识别脂质，特别是对低阶煤，可额外使用蓝光、蓝紫色或紫外光激发。 [外文原描述]： This document specifies a method, using a graticule with 20 crossline intersections, for determining the proportions of microlithotypes, carbominerite and minerite in coals. It applies only to determinations made on polished particulate blocks using reflected white light. Additional blue, blue-violet or UV light excitation for better identification of liptinite in fluorescence can be used especially for low rank coals.
英文名称Coal — Methods for petrographic analysis — Part 4: Method of determining microlithotype, carbominerite and minerite composition