ISO 4688-1:1992
Minerais de fer — Dosage de l'aluminium — Partie 1: Méthode par spectrométrie d'absorption atomique dans la flamme
Numéro de référence
ISO 4688-1:1992
Edition 1
ISO 4688-1:1992
Annulée (Edition 1, 1992)


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 aluminium with those obtained from the calibration solutions. Applies to aluminium contents between 0,1 % and 5,0 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

Informations générales

  •  : Annulée
     : 1992-12
    : Annulation de la Norme internationale [95.99]
  •  : 1
     : 9
  • ISO/TC 102/SC 2
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