ISO 7404-1:2025Published

Coal — Methods for petrographic analysis — Part 1: Vocabulary

Charbon — Méthodes d'analyse pétrographique — Partie 1: Vocabulaire

Abstract / scope

This document defines terms that are used in connection with both maceral and microlithotype analyses, and with the determination of the reflectance of vitrinite. It applies to the terms used in the examination of coal of all ranks and types.

This document is not intended to be a comprehensive glossary of coal petrographic terminology, nor does it attempt to provide sufficient information to allow recognition of all the coal components described.

Life cycle

Replaces

ISO 7404-1:2016WithdrawnMethods for the petrographic analysis of coals — Part 1: VocabularyInternational Standard · Published 23 Mar 2016 · ISO/TC 27/SC 5