
Tin-tungsten ores and concentrates. Determination of niobium, tantalum and scandium content
STANDARD published on 20.7.1990
Designation standards: ČSN 441523
Classification mark: 441523
Catalog number: 28240
Note: WITHDRAWN
Publication date standards: 20.7.1990
The number of pages: 8
Approximate weight : 24 g (0.05 lbs)
Country: Czech technical standard
Category: Technical standards ČSN