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ISO 7404-3:2009

Methods for the petrographic analysis of coals -- Part 3: Method of determining maceral group composition

General information
Valid from 24.09.2009
ICS Groups
73.040 Coals
Directives or regulations
None

Standard history

Status
Date
Type
Name
24.09.2009
Main
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.
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Standard monitoring