Reference Source

ISO 7404-4:2017

For ISO 7404-4:2017, item title is Methods for the petrographic analysis of coals — Part 4: Method of determining microlithotype, carbominerite and minerite composition; status code is 9599; successor is ISO 7404-4:2025; withdrawn / published date is 2017-08-09, recorded from its source on 2026-08-05.

Identifier
ISO 7404-4:2017 verified
Item title
Methods for the petrographic analysis of coals — Part 4: Method of determining microlithotype, carbominerite and minerite composition verified
Status code
9599 verified
Successor
ISO 7404-4:2025
Withdrawn / published date
2017-08-09 verified
Sourceisopublicstorageprod.blob.core.windows.net
Verified
Review by
DatasetWithdrawn and superseded ISO standards

What the source says

69224,IS,,ISO 7404-4:2017,"Methods for the petrographic analysis of coals — Part 4: Method of determining microlithotype, carbominerite and minerite composition","Méthodes d'analyse pétrographique des charbons — Partie 4: Détermination de la composition en microlithotypes, carbominérites et minérites",2017-08-09,2,['73.040'],ISO/TC 27/SC 5,9599,[14130],[87003],['en'],9,"<p>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-vi

isopublicstorageprod.blob.core.windows.net, retrieved 2026-08-05

Source

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