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National standards and national normative documents

Publication date

June 2004

Number of pages

82 p.

Reference

NF EN ISO 12677

ICS Codes

81.080 Refractories

Classification index

B40-677

Print number

1 - 15/06/2004

International kinship

ISO 12677:2003

European kinship

EN ISO 12677:2003

Sumary

Chemical analysis of refractory products by XRF - Fused cast bead method

ISO 12677:2003 specifies a method for chemical analysis of refractory products and materials, and technical ceramics composed of oxides, including the determination of oxide at levels between 0,01 % and 99 % by means of the XRF fused cast bead method.

Standard replaced by (1)

NF EN ISO 12677

November 2011

Standard Current

Chemical analysis of refractory products by X-ray fluorescence (XRF) - Fused cast-bead method

ISO 12677:2011 specifies a method for the chemical analysis of refractory and technical ceramic raw materials, intermediates and products, by means of the X-ray fluorescence (XRF) fused cast-bead method. Typical materials that can be analysed by ISO 12677:2011 are given in Clause 3. ISO 12677:2011 is not applicable to non-oxide materials, such as silicon carbides or nitrides, etc. The method is applicable to a wide range of materials containing a wide range of elements.

Table of contents

Avant-propos
iv
1 Domaine d'application
1
2 Références normatives
1
3 Types de matériaux
1
4 Principe
2
5 Broyage de l'échantillon
2
6 Appareillage
3
7 Perte au feu (et/ou au séchage)
3
8 Fondant
4
9 Modes opératoires de fusion
5
10 Étalonnage
8
11 Corrections
17
12 Reproductibilité et répétabilité
20
13 Mesure de la précision au moyen de matériaux de référence certifiés
23
14 Définition des limites de détection
23
15 Rapport d'essai
24
Annexe A (normative) Gammes d'étalonnage et limites de détection requises
25
Annexe B (normative) Corrections pour les agents de broyage en carbure de tungstène
30
Annexe C (informative) Exemples de fondants/proportions de fondants
32
Annexe D (normative) Exemples des matériaux de référence certifiés (CRM) utilisés pour la vérification des étalonnages synthétiques
34
Annexe E (normative) Exemples de matériaux de référence de série (SeRM)
39
Annexe F (normative) Équation pour les calculs théoriques
44
Annexe G (normative) Matériaux de référence certifiés (CRM)
45
Annexe H (normative) Méthode de correction d'interférence utilisée pour compenser les effets des composants coexistants lors de l'utilisation de matériaux de référence de série pour l'étalonnage
48
Annexe I (informative) Écarts-types obtenus pour des matériaux de référence certifiés
73
Bibliographie
76

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