BS 6127-3:1995 Petrographic analysis of bituminous coal and anthracite - Part 3. Method of determining maceral group composition of bituminous coal and anthracite
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This part of ISO 7404 specifies a method of deter-
mining 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 reflected white light. If needed, the proportions
of the individual macerals may be determined by the
same procedure. It is not concerned with the deter-
mination of the proportions of naturally occurring
maceral associations (i.e. microlithotypes, see
ISO 7404-4).
BS 6127-3:1995 Petrographic analysis of bituminous coal and anthracite - Part 3. Method of determining maceral group composition of bituminous coal and anthracite