ISO/DIS 7404-3

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

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.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

73.040

Statut:

Brouillon

Date de Publication:

1969-12-30

Numéro Standard:

ISO/DIS 7404-3