ISO 7404-2:2025
International Standard
Current Edition
·
Approved on
27 October 2025
Coal — Methods for petrographic analysis — Part 2: Method of preparing coal samples
ISO 7404-2:2025 Files
English
12 Pages
Current Edition
OMR
32.85
ISO 7404-2:2025 Scope
This document specifies methods for preparing a polished particulate block from a sample of crushed coal for analysis by reflected light microscopy. These methods can also be applied to the preparation of a polished, embedded lump of coal.
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