ISO 10203:1992
Iron ores — Determination of calcium content — Flame atomic absorption spectrometric method
Reference number
ISO 10203:1992
Edition 1
1992-12
Withdrawn
ISO 10203:1992
18234
Withdrawn (Edition 1, 1992)

Abstract

The method is based on decomposition of the test portion by hydrochloric acid/nitric acid, evaporation, ignition of the residue and removal of silica, fusion with sodium carbonate and dissolution of the cooled melt in the filtrate, aspiration of the solution into the flame of an atomic absorption spectrometer, and comparison of the absorbance values obtained for calcium with those obtained from the calibration solutions. Applies to calcium contents between 0,01 % and 10,0 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

General information

  •  : Withdrawn
     : 1992-12
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 9
  • ISO/TC 102/SC 2
    73.060.10 
  • RSS updates

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)