Abstract
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.
General information
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Status: DeletedStage: Project deleted [20.98]
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Edition: 4
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Technical Committee :ISO/TC 27/SC 5
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Life cycle
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Previously
PublishedISO 7404-3:2009
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Now
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