Chromium ores and concentrates — Determination of silicon content — Molecular absorption spectrometric method and gravimetric method
NORM herausgegeben am 1.11.1984
Bezeichnung normen: ISO 5997:1984
Ausgabedatum normen: 1.11.1984
Zahl der Seiten: 5
Gewicht ca.: 15 g (0.03 Pfund)
Land: Internationale technische Norm
Kategorie: Technische Normen ISO
Description / Abstract: The molecular absorption spectrometric method (A) is applicable to products having silicon contents from 0,05 to 0,5 % (m/m), the gravimetric method (B) is applicable to products having silicon contents from 0,5 to 15 % (m/m). ISO 5997 should be read in conjunction with ISO 4297. Specifies among other things principle, reagents, apparatus, procedure, spectrometric measurement (method A only) and expression of results.