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ISO 7404-3:2025
Coal — Methods for petrographic analysis
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Summary
ISO 7404-3:2009 specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. ISO 7404-3:2009 is applicable only to 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.
Notes
40.00 : DIS enregistré
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 10/27/2025 |
| Edition | 4 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
Replaces
24/09/2009
Superseded
, Confirmed
, Has Draft
Historical
Previous versions
24/09/2009
Superseded
, Confirmed
, Has Draft
Historical