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EN ISO 21078-1:2008
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Determination of boron (III) oxide in refractory products - Part 1: Determination of total boron (III) oxide in oxidic materials for ceramics, glass and glazes (ISO 21078-1:2008)
15-01-2008
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Preparation of the test sample
5 Number of determinations
6 Determination of boron(III) oxide by alkaline titrimetry
7 Determination of boron(III) oxide by azomethine H
absorption spectrophotometry
8 Determination of boron(III) oxide by curcumin absorption
spectrophotometry
9 Determination of boron(III) oxide by inductively coupled
plasma atomic emission spectrometry (ICP-AES)
10 Expression of test results
11 Test report
Annex A (informative) - Interlaboratory test results
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