ISO 12926:2012

INTERNATIONAL ISO
STANDARD 12926
First edition
2012-12-15
Aluminium fluoride for industrial
use — Determination of trace
elements — Wavelength dispersive
X-ray fluorescence spectrometric
method using pressed powder tablets
Fluorure d’aluminium à usage industriel — Détermination d’éléments
traces — Méthode par spectrométrie de fluorescence des rayons X à
dispersion de longueur d’onde utilisant des pastilles de poudre pressée
Reference number
ISO 12926:2012(E)
©
ISO 2012

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ISO 12926:2012(E)

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ii © ISO 2012 – All rights reserved

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ISO 12926:2012(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Reagents and materials . 2
5 Apparatus . 2
6 Test procedure . 3
6.1 Test specimen preparation . 3
6.2 Addition of binder method . 3
6.3 Backing method. 4
6.4 X-ray fluorescence spectrometer application . 4
6.5 Monitor sample for correction of instrumental drift . 6
6.6 Analysis, calculation and expression of results . . 6
7 Precision . 6
7.1 General . 6
7.2 How to use Table 4 using sodium (Na) as an example . 7
7.3 How to use Table 4 using sulfur (S) as an example . 7
8 Test report .
...