Methods for the petrographic analysis of coals — Part 2: Methods of preparing coal samples
NORMA vydaná dňa 24.9.2009
Označenie normy: ISO 7404-2:2009-ed.2.0
Dátum vydania normy: 24.9.2009
Počet strán: 12
Približná hmotnosť: 36 g (0.08 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / Abstract: 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.