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ISO 7404-3:1994

Methods for the petrographic analysis of bituminous coal and anthracite — Part 3: Method of determining maceral group composition

Sep 29, 1994
95.99   Withdrawal of Standard   Sep 24, 2009

General information

95.99     Sep 24, 2009

ISO

ISO/TC 27/SC 5

International Standard

73.040  

English  

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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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 7404-3:1984

NOW

WITHDRAWN
ISO 7404-3:1994
95.99 Withdrawal of Standard
Sep 24, 2009

REVISED BY

WITHDRAWN
ISO 7404-3:2009