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Standard ISO 7404-2:2025-ed.3.0 27.10.2025 preview

ISO 7404-2:2025-ed.3.0

Coal — Methods for petrographic analysis — Part 2: Method of preparing coal samples

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STANDARD published on 27.10.2025


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The information about the standard:

Designation standards: ISO 7404-2:2025-ed.3.0
Publication date standards: 27.10.2025
SKU: NS-1246150
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: International technical standard
Category: Technical standards ISO

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Coals

Annotation of standard text ISO 7404-2:2025-ed.3.0 :

Description / Abstract: 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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