ISO 7404-3:2025 ✓ Most Recent

3033847

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

standard by International Organization for Standardization , 10/01/2025

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Full 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.

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Document History

  1. ISO 7404-3:2025

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

    • Most Recent

  2. ISO 7404-3:2009


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

    • Historical Version

  3. ISO 7404-3:1994


    Methods for the petrographic analysis of bituminous coal and anthracite -- Part 3: Method of determining maceral group composition

    • Historical Version

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Published:

10/01/2025

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1 file

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This product is restricted and cannot be purchased in the following countries Ukraine, Russia, Belarus