This standard was last reviewed and confirmed in 2022.
Therefore this version remains current.
Abstract
PreviewISO 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.
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Status: PublishedPublication date: 2009-10
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Edition: 3Number of pages: 7
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- ICS :
- 73.040 Coals
Buy this standard
en
| Format | Language | |
|---|---|---|
| std 1 61 | ||
| std 2 61 | Paper |
- CHF61
Life cycle
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Previously
WithdrawnISO 7404-3:1994
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Now
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Will be replaced by
Under developmentISO/AWI 7404-3
DeletedISO/WD 7404-3
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