BS EN 725-2:2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Advanced technical ceramics. Methods of test for ceramic powders Determination of impurities in barium titanate
Hardcopy , PDF
02-02-2023
English
30-11-2007
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Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Preparation of sample solution
6.1 Sample calcination
6.2 Test sample
6.3 Dissolution of the test sample
7 Calibration
7.1 Standard addition method
7.2 Calibration method
8 Procedure
8.1 ICP spectrometer operation
8.2 Standard addition method
8.3 Calibration method
9 Test report
Specifies a method for the determination of impurities in barium titanate powders using inductively coupled plasma optical emission spectroscopy (ICP-OES).
| Committee |
RPI/13
|
| DevelopmentNote |
Supersedes DD ENV 725-2 & 05/30131025 DC. (11/2007)
|
| DocumentType |
Standard
|
| Pages |
12
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes | |
| UnderRevision |
This part of EN 725 describes a method for the determination of impurities in barium titanate powders using inductively coupled plasma optical emission spectroscopy (ICP-OES). The method is applicable only to stoichiometric barium titanate. The maximum concentrations measured for each impurity are as follows: Sr 4 mg/g (4 000 ppm) Ca 500 ug/g (500 ppm) K 200 ug/g (200 ppm) Na, Mg, Al, Fe, Nb 100 ?g/g (100 ppm) The minimum concentration or detection limits are from 1 ug/g to 5 ug/g (1 ppm to 5 ppm).
| Standards | Relationship |
| ONORM EN 725-2 : 2008 | Identical |
| NF EN 725-2 : 2008 | Identical |
| EN 725-2:2007 | Identical |
| SN EN 725-2 : 2008 | Identical |
| NBN EN 725-2 : 2008 | Identical |
| NEN EN 725-2 : 2007 | Identical |
| DIN EN 725-2:2008-01 | Identical |
| I.S. EN 725-2:2007 | Identical |
| NS EN 725-2 : 1ED 2007 | Identical |
| ISO/IEC 17025:2005 | General requirements for the competence of testing and calibration laboratories |
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