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BS ISO 23739:2021

BS ISO 23739:2021

$142.49

Fine ceramics (advanced ceramics, advanced technical ceramics). Methods for chemical analysis of zirconium oxide powders

Published By Publication Date Number of Pages
BSI 2021 26
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This document specifies methods for the chemical analysis of zirconium oxide powders used as the raw material for fine ceramics.

It stipulates the determination methods of the zirconium, aluminium, barium, calcium, cerium, cobalt, gadolinium, hafnium, iron, magnesium, potassium, silicon, sodium, strontium, titanium and yttrium contents in zirconium oxide powders for fine ceramics. The test sample is decomposed by acid pressure decomposition or alkali fusion. Contents of zirconium and yttrium are determined by using either a precipitation and gravimetric method or an inductively coupled plasma–optical emission spectrometry (ICP–OES) method. Contents of aluminium, barium, calcium, cerium, cobalt, gadolinium, hafnium, iron, magnesium, potassium, silicon, sodium, strontium and titanium are determined by using an ICP–OES method.

PDF Catalog

PDF Pages PDF Title
2 National foreword
7 Foreword
9 1 Scope
2 Normative references
3 Terms and definitions
4 Analytes and ranges
10 5 Preparation of the test sample
5.1 General
5.2 Sampling
5.3 Drying
5.4 Weighing
6 Reporting the analytical values
6.1 Number of analyses
6.2 Blank test
6.3 ​Evaluation of the analytical values
11 6.4 Expression of analytical values
7 Decomposition of the test sample
7.1 Classification of the sample decomposition methods
7.2 Acid pressure decomposition
7.2.1 Reagents
7.2.2 Apparatus and instruments
12 7.2.3 Procedure
7.2.4 Blank test
13 7.3 Alkali fusion
7.3.1 Reagents
7.3.2 Apparatus and instruments
7.3.3 Procedure
7.3.4 Blank test
14 8 Determination of the zirconium content
8.1 Precipitation and gravimetric method
8.1.1 Principle
8.1.2 Reagents
8.1.3 Apparatus and instruments
8.1.4 Procedure
15 8.1.5 Blank test
8.1.6 Calculation
8.2 ICP–OES method
8.2.1 Principle
8.2.2 Reagents
8.2.3 Apparatus and instruments
8.2.4 Procedure
8.2.5 Blank test
16 8.2.6 Drawing of calibration curve
8.2.7 Calculation
9 Determination of the major elements contents
9.1 Precipitation and gravimetric method (for yttrium)
9.1.1 Principle
9.1.2 Reagents
9.1.3 Apparatus and instruments
17 9.1.4 Procedure
9.1.5 Blank test
9.1.6 Calculation
9.2 ICP–OES method (for calcium, hafnium, magnesium and yttrium)
9.2.1 Principle
9.2.2 Reagents
18 9.2.3 Apparatus and instruments
9.2.4 Procedure
9.2.5 Blank test
9.2.6 Drawing of calibration curve
19 9.2.7 Calculation
10 Determination of the trace elements contents
10.1 Principle
10.2 Reagents
10.2.1 Elemental standard solution
20 10.2.2 Mixed standard solution (each element 50 mg/l)
10.3 Apparatus and instruments
10.4 Procedure
21 10.5 Blank test
10.6 Drawing of the calibration curve
10.7 Calculation
22 11 Test report
23 Annex A (informative) Analytical results obtained from the interlaboratory test
24 Bibliography

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BS ISO 23739:2021
$142.49