40.60 Close of voting Mar 19, 2025
ISO
ISO/TC 27/SC 5 Methods of analysis
International Standard
73.040 Coals
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.
PUBLISHED
ISO 7404-2:2009
IN_DEVELOPMENT
ISO/DIS 7404-2
40.60
Close of voting
Mar 19, 2025