
ISO 7404-3:2025
ISO 7404-3:2025 Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition
CDN $129.00
This publication was last reviewed and confirmed in 2025.
Coal — Methods for petrographic analysis — Part 3: Method of determining maceral group composition
Description
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.
Edition
4
Published Date
2026-06-19
Status
PUBLISHED
Pages
8
Format 
Secure PDF
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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.
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