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  • BSI
    BS ISO 12926:2012 Aluminium fluoride for industrial use. Determination of trace elements. Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets
    Edition: 2013
    $316.70
    / user per year

Description of BS ISO 12926:2012 2013

This International Standard describes an X-ray fluorescence spectrometric (XRF) method for the determination of aluminium fluoride (AlF3) from the content of fluorine and the content of trace elements in the test specimen. The method does not determine the oxygen content. The calibration reference materials are not specified in this method.

The method is applicable to industrial-grade aluminium fluoride where the concentration range for aluminium fluoride and each trace element is within the concentration range given in Table 1. The validity and precision of test results for concentrations outside these ranges has not been determined (see Note).

Table 1

Concentration range for aluminium fluoride (from fluorine) and trace elements

Compound or element Symbol Concentration range
mass %
Aluminium fluoride AlF3 86,5 to 95,75
Sodium Na 0,05 to 0,25
Silicon Si 0,001 to 0,14
Phosphorus P 0,001 to 0,02
Sulfur S 0,01 to 0,6
Calcium Ca 0,001 to 0,10
Iron Fe 0,005 to 0,05

NOTE The determination of fluorine has an uncertainty due to mineralogical variation among origins of aluminium fluoride. Batches from different origins with the same fluorine contents can give different intensities when determined by this method and pressed tablet preparation does not eliminate this problem. An AlF3 sample of unusual mineralogical origin should be tested with an absolute method to verify that, when using this test method, the fluorine concentration range reported is valid.



Standard NumberBS ISO 12926:2012
TitleAluminium fluoride for industrial use. Determination of trace elements. Wavelength dispersive X-ray fluorescence spectrometric method using pressed powder tablets
StatusRevision Underway
Publication Date2013-01-31
Identical National Standard OfISO 12926:2012
DescriptorsTrace element analysis, Raw materials, X-ray fluorescence spectrometry, Electrolytes, Particulate materials, Aluminium
ICS71.100.10 Materials for aluminium production
CommitteeW/-
ISBN978 0 580 67805 9
PublisherBSI
Pages22

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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