ISO/FDIS 7404-3
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition
Hardcopy , PDF
English
16-07-2025
27-10-2025
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.
| Committee |
ISO/TC 27/SC 5
|
| DocumentType |
Draft
|
| Pages |
8
|
| PublisherName |
International Organization for Standardization
|
| RevisionOf | |
| Status |
Superseded
|
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