ISO 7404-2:2009 Preview
Methods for the petrographic analysis of coals -- Part 2: Methods of preparing coal samples
This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
ISO 7404-2:2009 specifies methods for preparing a polished particulate block from a sample of crushed coal for analysis by reflectance microscopy. These methods can also be applied to the preparation of a polished, embedded lump of coal.
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