Reference number
ISO 7404-3:2009
© ISO 2026
ISO 7404-3:2009
Methods for the petrographic analysis of coals — Part 3: Method of determining maceral group composition
Edition 3
2009-10
Withdrawn
Withdrawn (Edition 3, 2009)

Abstract

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.

General information

  • Status
     : Withdrawn
    Publication date
     : 2009-10
    Stage
    : Withdrawal of International Standard [95.99]
  • Edition
     : 3
    Number of pages
     : 7
  • Technical Committee :
    ISO/TC 27/SC 5
    ICS :
    73.040 
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