ISO 7404-4-1988 烟煤和无烟煤的岩相分析 第4部分:显微煤岩类型、显微矿化类型及显微矿质类型组成测定方法

标准号：ISO 7404-4-1988
中文标准名称：烟煤和无烟煤的岩相分析 第4部分:显微煤岩类型、显微矿化类型及显微矿质类型组成测定方法
英文标准名称：Methods for the petrographic analysis of bituminous coal and anthracite; part 4: method of determining microlithotype, carbominerite and minerite composition
标准类型：D21
发布日期：1999/12/31 12:00:00
实施日期：1988/12/15 12:00:00
中国标准分类号：D21
国际标准分类号：73.040
适用范围：This part of ISO 7404 applies only to determinations made on polished particular blocks using reflected white ligth. The examination is carried out by using reflected ligth microscope and point count procedure. The microlithotypes are identified from their maceral composition under an immersion medium. The proportions of the macerals are determined using a graticule having a grid with 20 points of intersection.