NF EN 955-2
NF EN 955-2

NF EN 955-2

July 1995
Standard Cancelled

Chemical analysis of refractory products. Part 2 : products containing silica and/or alumina (wet method).

Ce document décrit une méthode d'analyse chimique complète, par voie humide, destinée à la caractérisation des produits ou matériaux réfractaires.

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Publication date

July 1995

Number of pages

25 p.

Reference

NF EN 955-2

ICS Codes

81.080   Refractories

Classification index

B49-431

Print number

1 - juin 1995

European kinship

EN 955-2:1995
Sumary
Chemical analysis of refractory products. Part 2 : products containing silica and/or alumina (wet method).

Ce document décrit une méthode d'analyse chimique complète, par voie humide, destinée à la caractérisation des produits ou matériaux réfractaires.
Replaced standards (1)
NF B49-410
NF B49-410
January 1968
Standard Cancelled
Chemical analysis of refractories. Silica materials silico-argillaceous and argillaceous materials. Dissolution.

Standard replaced by (2)
NF EN ISO 21587-1
NF EN ISO 21587-1
December 2007
Standard Current
Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) - Part 1 : apparatus, reagents, dissolution and gravimetric silica

ISO 21587-1:2007 specifies reagents, dissolution and gravimetric silica analysis for the chemical analysis of aluminosilicate refractory products and raw materials. ISO 21587-1:2007 gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677:2003.

NF EN ISO 21587-2
NF EN ISO 21587-2
December 2007
Standard Current
Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) - Part 2 : wet chemical analysis

ISO 12677-2:2007 specifies traditional ("wet") methods for the chemical analysis of aluminosilicate refractory products and raw materials. The methods are applicable to the determination of the following: silicon(IV) oxide (SiO2)aluminium oxide (Al2O3)iron(III) oxide (total iron oxide calculated as Fe2O3)titanium(IV) oxide (TiO2)manganese(II) oxide (MnO)calcium oxide (CaO)magnesium oxide (MgO)sodium oxide (Na2O)potassium oxide (K2O)chromium(III) oxide (Cr2O3)zirconium oxide (ZrO2)phosphorous(V) oxide (P2O5) This part of ISO 12677 gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677:2003.

Table of contents
  • Avant-propos
    3
  • 1 Domaine d'application
    4
  • 2 Définitions
    4
  • 3 Préparation de l'échantillon
    4
  • 4 Réactifs
    5
  • 5 Appareillage
    11
  • 6 Détermination de la perte au feu
    11
  • 7 Dissolution de l'échantillon
    12
  • 8 Dosage de la silice et de l'alumine ainsi que des oxydes de fer, de titane, de manganèse et de phosphore
    12
  • 9 Dosage de l'oxyde de calcium, de la magnésie et des alcalins
    16
  • 10 Dosage direct de l'alumine dans les réfractaires de silice
    19
  • 11 Dosage direct de l'alumine dans les réfractaires silico- argileux, argileux et à haute teneur en alumine
    20
  • 12 Expression des résultats
    20
  • 13 Rapport d'essai
    21
  • Annexe A (normative) Étalonnages
    22
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