
Methods for the petrographic analysis of coals. Methods of preparing coal samples.
STANDARD published on 30.11.2009
Designation standards: BS ISO 7404-2:2009
Note: WITHDRAWN
Publication date standards: 30.11.2009
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: British technical standard
Category: Technical standards BS