prBAS ISO 7404-3:2026
Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition
General information
Status:Project
Number of pages:12
Adoption method:Korice
Language:engleski
Edition:3.
Realization date:17.11.2025
Forseen date for next stage code:27.11.2025
Technical committee:BAS/TC 27, Mining
ICS:
73.040, Coals
Abstract
This document specifies a method for determining 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 incident white light. For lower-rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.
Lifecycle
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Original document and degree of correspondence
ISO 7404-3:2025, identical
Relation to BAS standards
Work material
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