+91 80984 42953 hello@sascert.in
Verify a certificate ISO standards library Download brochure
ISO 7404-2:2009Withdrawn

Methods for the petrographic analysis of coals — Part 2: Methods of preparing coal samples

Méthodes d'analyse pétrographique des charbons — Partie 2: Préparation des échantillons de charbon

This edition has been replaced by ISO 7404-2:2025.

Abstract / scope

ISO 7404-2:2009 specifies methods for preparing a polished particulate block from a sample of crushed coal for analysis by reflectance microscopy. These methods can also be applied to the preparation of a polished, embedded lump of coal.

Life cycle

Replaces

ISO 7404-2:1985WithdrawnMethods for the petrographic analysis of bituminous coal and anthracite — Part 2: Preparation of coal samplesInternational Standard · Published 2 May 1985 · ISO/TC 27

Replaced by

ISO/WD 7404-2Deleted (project abandoned)Methods for the petrographic analysis of coals — Part 2: Methods of preparing coal samplesInternational Standard · ISO/TC 27/SC 5ISO 7404-2:2025PublishedCoal — Methods for petrographic analysis — Part 2: Method of preparing coal samplesInternational Standard · Published 27 Oct 2025 · ISO/TC 27/SC 5