ISO/FDIS 7404-4
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Coal — Methods for petrographic analysis — Part 4: Method of determining microlithotype, carbominerite and minerite composition
Available format(s)
Hardcopy , PDF
Language(s)
English
Published date
16-07-2025
Superseded date
27-10-2025
€65.00
Excluding VAT
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.
| Committee |
ISO/TC 27/SC 5
|
| DocumentType |
Draft
|
| Pages |
9
|
| PublisherName |
International Organization for Standardization
|
| RevisionOf | |
| Status |
Superseded
|
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