20.98 Oct 7, 2022
ISO
ISO/TC 27/SC 5
International Standard
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.
WITHDRAWN
ISO 7404-2:2009
ABANDON
ISO/WD 7404-2
20.98
Project deleted
Oct 7, 2022