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sklademVydáno: 2009-11-30
BS ISO 7404-3:2009
Methods for the petrographic analysis of coals Method of determining maceral group composition
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| Označení normy: | BS ISO 7404-3:2009 |
| Počet stran: | 18 |
| Vydáno: | 2009-11-30 |
| ISBN: | 978 0 580 56503 8 |
| Status: | Standard |
DESCRIPTION
BS ISO 7404-3:2009
This standard BS ISO 7404-3:2009 Methods for the petrographic analysis of coals is classified in these ICS categories:
- 73.040 Coals
This part of ISO 7404 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.