ISO 7404-3:1994
Methods for the petrographic analysis of bituminous coal and anthracite - Part 3: Method of determining maceral group composition

Standard No.

ISO 7404-3:1994

Release Date

1994

Published By

International Organization for Standardization (ISO)

Status

Withdraw

Replace By

ISO 7404-3:2009

Latest

ISO 7404-3:2009

Scope

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.

ISO 7404-3:1994 history

• 2009 ISO 7404-3:2009 Methods for the petrographic analysis of coals - Part 3: Method of determining maceral group composition
• 1994 ISO 7404-3:1994 Methods for the petrographic analysis of bituminous coal and anthracite - Part 3: Method of determining maceral group composition
• 1984 ISO 7404-3:1984 Methods for the petrographic analysis of bituminous coal and anthracite; Part 3 : Method of determining maceral group composition