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ISO 7404-4:2017

Methods for the petrographic analysis of coals - Part 4: Method of determining microlithotype, carbominerite and minerite composition

standard by International Organization for Standardization , 08/01/2017

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Full Description

ISO 7404-4:2017 specifies a method, using a graticule with 20 crossline 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 (about 400 nm to 700 nm). Additional blue, blue-violet or UV light excitation (365 nm to 440 nm) for better identification of liptinite in fluorescence may be used especially at low rank coals.

 

Product Details

Published:
08/01/2017
Number of Pages:
16
File Size:
1 file , 440 KB
Same As:
BS ISO 7404-4:2017
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This product is unavailable in Ukraine, Russia, Belarus
 

Document History

  1. ISO 7404-4:2017

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    Methods for the petrographic analysis of coals - Part 4: Method of determining microlithotype, carbominerite and minerite composition

    • Most Recent

  2. ISO 7404-4:1988


    Methods for the petrographic analysis of bituminous coal and anthracite -- Part 4: Method of determining microlithotype, carbominerite and minerite composition

    • Historical Version