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.

See more
Main informations

Collections

National standards and national normative documents

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 - 01/06/1995
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
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
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
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
New: UPSELL service
- The UPSELL service allows you to easily update one of your standards.
- With a single click, add a new language, the Requirements or Redline+ service and add one or more additional users.
- Whether you are in the process of acquiring a standard or it is already available in your personal space, the UPSELL service is available at every stage to help you understand it and implement it within your organization.
Need to identify, monitor and decipher standards?

COBAZ is the simple and effective solution to meet the normative needs related to your activity, in France and abroad.

Available by subscription, CObaz is THE modular solution to compose according to your needs today and tomorrow. Quickly discover CObaz!

Request your free, no-obligation live demo

I discover COBAZ