Cancels and replaces the first edition (1984). Specifies a method of determining the proportions of the maceral groups (and the minerals if desired) in coals. Concerned only with determinations made on polished particulate blocks using reflected white light. Not concerned with the determination of the proportions of naturally occurring maceral associations.
Status: WithdrawnPublication date: 1994-09
Edition: 2Number of pages: 6
Technical Committee: ISO/TC 27/SC 5 Methods of analysis
- ICS :
- 73.040 Coals
ISO 7404-3:1994Stage: 95.99
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