NF EN ISO 21079-1

NF EN ISO 21079-1

August 2008
Standard Current

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

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.

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Main informations

Collections

National standards and national normative documents

Publication date

August 2008

Number of pages

21 p.

Reference

NF EN ISO 21079-1

ICS Codes

71.040.40   Chemical analysis
81.080   Refractories

Classification index

B49-424-1

Print number

1 - 07/08/2008

International kinship

ISO 21079-1:2008

European kinship

EN ISO 21079-1:2008
Sumary
Chemical analysis of refractories containing alumina, zirconia and silica - Refractories containing 5 % to 45 % of ZrO2 (alternative to the X-ray fluorescence method) - Part 1 : Apparatus, reagents and dissolution

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.

Table of contents
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  • Avant-propos
    iv
  • 1
    Domaine d'application 1
  • 2
    Références normatives 1
  • 3
    Termes et définitions 2
  • 4
    Appareillage 2
  • 5
    Réactifs 2
  • 5.1
    Généralités 2
  • 5.2
    Solutions étalons spécifiques à l'ISO 21079 2
  • 6
    Échantillonnage 5
  • 7
    Modes opératoires généraux 5
  • 8
    Détermination de la perte au feu 5
  • 9
    Décomposition de l'échantillon et préparation des solutions utilisées pour l'analyse 5
  • 9.1
    Techniques générales de décomposition 5
  • 9.2
    Méthodes de dissolution par fusion 5
  • 9.3
    Méthodes de dissolution par attaque à l'acide fluorhydrique 8
  • 10
    Expression des résultats d'essai 10
  • 11
    Examen et approbation des résultats d'essai 11
  • 12
    Rapport d'essai 11
  • Annexe A (informative) Références des solutions mères et des solutions témoins dans la présente partie de l'ISO 21079
    12
  • Bibliographie
    13
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