20.98 7. 10. 2022.
ISO
ISO/TC 27/SC 5
Међународни стандард
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.
ПОВУЧЕН
ISO 7404-2:2009
НАПУШТЕН
ISO/WD 7404-2
20.98
Пројекат се брише из плана рада комисије за стандарде
7. 10. 2022.