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.

SDO:

ISO

Language:

English

ICS Codes:

73.040

Status:

Draft

Publish date:

1969-12-30

Standard Number:

ISO/DIS 7404-3