ISO 21079-1:2008Published

Chemical analysis of refractories containing alumina, zirconia and silica — Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) — Part 1: Apparatus, reagents and dissolution

Analyse chimique des matériaux réfractaires contenant de l'alumine, de la zircone et de la silice — Matériaux réfractaires contenant de 5 % à 45 % de ZrO2 (méthode alternative à la méthode par fluorescence de rayons X) — Partie 1: Appareillage, réactifs et dissolution

Abstract / scope

ISO 21079-1:2008 specifies methods for the chemical analysis of AZS (alumina, zirconia, and silica) refractory products (containing 5 % to 45 % of ZrO₂) and raw materials, using traditional ("wet") methods, inductively coupled plasma atomic emission (ICP-AE) spectrometry and flame atomic absorption (FAA) spectrometry. It covers apparatus, reagents and dissolution methods.

ISO 21079-1:2008 is not applicable to MgO-based refractories.

ISO 21079-1:2008 gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677.