Standard

ISO 7404-3:1994

Withdrawn

Note: This standard has a new edition: ISO 7404-3:2025

Corrigendums and amendments are bought separately.

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Abstract

Cancels and replaces the first edition (1984). Specifies a method of determining the proportions of the maceral groups (and the minerals if desired) in coals. Concerned only with determinations made on polished particulate blocks using reflected white light. Not concerned with the determination of the proportions of naturally occurring maceral associations.

Document information

  • Standard from ISO
  • Published:
  • Withdrawn:
  • Expires:
  • Edition: 2
  • Version: 1
  • Document type: IS
  • ICS 73.040
  • ISO TC ISO/TC 27/SC 5

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