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ISO 7404-2:2025
Coal — Methods for petrographic analysis
Part 2: Method of preparing coal samples
Part 2: Method of preparing coal samples
Summary
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.
Notes
40.00 : DIS enregistré
Technical characteristics
| Publisher | International Organization for Standardization (ISO) |
| Publication Date | 10/27/2025 |
| Edition | 3 |
| Page Count | 12 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
Replaces
24/09/2009
Superseded
, Reaffirmed
, Under review
Historical
Previous versions
27/10/2025
Active
Most Recent
24/09/2009
Superseded
, Reaffirmed
, Under review
Historical