Czechoslovak analytical standard sample for non-ore materials
NORM herausgegeben am 1.1.1971
Designation standards: STN 012891
Classification mark: 012891
Catalog number: 50256
Note: UNGÜLTIG
Publication date standards: 1.1.1971
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Kategorie: Technische Normen STN