BSI 20/30420126 DC:2020 Edition

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BS ISO 4443. Cryolite primarily used for the production of aluminium. Determination of elements. Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets

Published By	Publication Date	Number of Pages
BSI	2020	16

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Categories: 71.100.10 - Materials for aluminium production, BSI

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Description

This document describes a wavelength dispersive X-ray fluorescence spectrometric (XRF) method for the determination of cryolite (Na₃AlF₆) from the content of fluorine to the content of trace elements. The calibration reference materials are not specified in this method.

The method is applicable to cryolite, which is primarily used for the production of aluminium, where the concentration range for each element is given in Table 1. Annex A provides conversion factors for conversing element to compound. The validity and precision of test results for concentrations outside these ranges has not been determined.

Table 1

Concentration range for elements in cryolite

Additional information

Pages	16
Sulfur	SO4
Descriptors	Cryolite, Production, Aluminium, X-rays, Fluorescence, Powder, Tablets
Silicon	SiO2
Identical National Standard Of	ISO/DIS 4443
Standard Number	20/30420126 DC
Publication Date	2020-12-17
Sodium	Na
Committee	W/-
Publisher	BSI
Iron	Fe2O3
Aluminium	Al
Title	BS ISO 4443. Cryolite primarily used for the production of aluminium. Determination of elements. Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets
Phosphorus	P2O5
Fluorine	F
Calcium	CaO
Status	Definitive
ICS Codes	71.100.10 - Materials for aluminium production

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BSI 20/30420126 DC:2020 Edition

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