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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

Pages: 16
Publication date: 2017-08-01
Price: 68 vnd

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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.
Document identifier
ISO 7404-4:2017
Title
Methods for the petrographic analysis of coals - Part 4: Method of determining microlithotype, carbominerite and minerite composition
ISO Category
TC 27/SC 5: Methods of analysis
Publication date
2017-08-01
Status
Effective
International Relationship
BS ISO 7404-4:2017
Cross references
Latest version
ISO 7404-4:2017
Methods for the petrographic analysis of coals - Part 4: Method of determining microlithotype, carbominerite and minerite composition
Document identifier ISO 7404-4:2017
Publication date 2017-08-01
Classification 73.040. Coals
Status Effective
*
History of version
ISO 7404-4:2017 * ISO 7404-4:1988
Keywords
Classification
73.040. Coals
Pages
16
Price 68 vnd

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