This standard was last reviewed and confirmed in 2022. 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.
Status: PublishedPublication date: 2009-10
Edition: 2Number of pages: 12
Technical Committee: ISO/TC 27/SC 5 Methods of analysis
- ICS :
- 73.040 Coals
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|std 1 61|
|std 2 61||Paper|
A standard is reviewed every 5 years
Stage: 90.92 (To be revised)
Will be replaced byUnder development
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