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ISO/WD 7404-3

Methods for the petrographic analysis of coals — Part 3: Method of determining maceral group composition

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20.98     6. 12. 2022.

ISO

ISO/TC 27/SC 5

Međunarodni standard

Apstrakt

ISO 7404-3:2009 specifies a method for determining the proportions of the maceral groups (and the minerals, if desired) in coals. ISO 7404-3:2009 is applicable only to determinations made on polished particulate blocks using incident white light. For lower-rank coals, the additional use of the fluorescence mode is necessary to identify liptinites.

Životni ciklus

PRETHODNO

POVUČEN
ISO 7404-3:2009

TRENUTNO

NAPUŠTEN
ISO/WD 7404-3
20.98 Projekat se briše iz plana rada komisije za standarde
6. 12. 2022.