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Home>ISO 7404-4:2025

ISO 7404-4:2025

ISO 7404-4:2025

ISO 7404-4:2025 Coal - Methods for petrographic analysis - Part 4: Method of determining microlithotype, carbominerite and minerite composition

standard byInternational Organization for Standardization , 10/01/2025

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This document specifies a method, using a graticule with 20crossline intersections, for determining the proportions of microlithotypes, carbominerite and minerite in coals. It applies only to determinations made on polished particulate blocks using reflected white light. Additional blue, blue-violet or UV light excitation for better identification of liptinite in fluorescence can be used especially for low rank coals.

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Published:

10/01/2025

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1 file , 1 Byte

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

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