NEN ISO 7404-4 : 2017现行
METHODS FOR THE PETROGRAPHIC ANALYSIS OF COALS - PART 4: METHOD OF DETERMINING MICROLITHOTYPE, CARBOMINERITE AND MINERITE COMPOSITION
出版：Netherlands Standards
专家解读视频
基本信息
标准编号： NEN ISO 7404-4 : 2017
标准类别：Standard
出版单位：Netherlands Standards
标准页数：0
标准简介
Describes a method, using a graticule with 20 crossline intersections, for determining the proportions of microlithotypes, carbominerite and minerite in coals.
等同采用的国际标准
ISO 7404-4 : 2017 - Identical
ISO 7404-4 : 2017-08 - Identical
ISO 7404-4 : 2017-08 - Identical
