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  • BSI
    BS EN ISO 21079-1:2008 Chemical analysis of refractories containing alumina, zirconia and silica. Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) - Apparatus, reagents and dissolution
    Edition: 2009
    $316.70
    / user per year

Description of BS EN ISO 21079-1:2008 2009

This part of ISO 21079 specifies methods for the chemical analysis of AZS (alumina, zirconia, and silica) refractory products (containing 5 % to 45 % of ZrO2) and raw materials, using traditional (“wet”) methods, inductively coupled plasma atomic emission (ICP-AE) spectrometry and flame atomic absorption (FAA) spectrometry. It covers apparatus, reagents and dissolution methods.

The range of determination is given in Table 1.

Table 1

Range of determination (% by mass)

Component Range Component Range
LOI –1 to 40 MgO 0,01 to 2
SiO2 0,1 to 45 Na2O 0,01 to 3
Al2O3 1 to 80 K2O 0,01 to 1
Fe2O3 0,01 to 2 Cr2O3 0,01 to 3
TiO2 0,01 to 5 ZrO2 5 to 45
CaO 0,01 to 2 HfO2 0,01 to 2

NOTE The values other than LOI are on an ignited basis.

This part of ISO 21079 is not applicable to MgO-based refractories.

NOTE This part of ISO 21079 gives alternatives to the X-ray fluorescence (XRF) method given in ISO 12677.



Standard NumberBS EN ISO 21079-1:2008
TitleChemical analysis of refractories containing alumina, zirconia and silica. Refractories containing 5 percent to 45 percent of ZrO2 (alternative to the X-ray fluorescence method) - Apparatus, reagents and dissolution
StatusConfirmed
Publication Date2009-04-30
Identical National Standard OfEN ISO 21079-1:2008, ISO 21079-1:2008
DescriptorsAtomic emission spectrophotometry, Zirconium dioxide, Silicon dioxide, Flame atomic absorption spectrometry, Chemical reagents, Test equipment, Refractories, Specimen preparation, Refractory materials, Aluminium oxide, Chemical analysis and testing, Determination of content
ICS71.040.40 Chemical analysis, 81.080 Refractories
CommitteeRPI/1
ISBN978 0 580 58570 8
PublisherBSI
Pages20

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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