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ISO 7404-1:2025-ed.4.0

Coal — Methods for petrographic analysis — Part 1: Vocabulary

STANDARD published on 27.10.2025

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The information about the standard:

Designation standards: ISO 7404-1:2025-ed.4.0
Publication date standards: 27.10.2025
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: International technical standard
Category: Technical standards ISO

Annotation of standard text ISO 7404-1:2025-ed.4.0 :

Description / Abstract: 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.