I.S. EN 725-1:2007
Current
The latest, up-to-date edition.
ADVANCED TECHNICAL CERAMICS - METHODS OF TEST FOR CERAMIC POWDERS - PART 1: DETERMINATION OF IMPURITIES IN ALUMINA
Hardcopy , PDF
English
01-01-2007
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
4.1 General
4.2 Reagents for fusion
4.3 Sulphuric acid-phosphoric acid mixture for acid
dissolution
4.4 Reagents for calibration
5 Apparatus
6 Test sample
7 Decomposition of the test sample
7.1 General
7.2 Fusion
7.3 Acid dissolution
8 Calibration graph
8.1 General
8.2 Fusion
8.3 Acid dissolution
8.4 Drawing the calibration curve
9 Adjustment of the apparatus
9.1 Atomic absorption spectrometer
9.2 Inductively coupled plasma spectrometer
10 Measurements
11 Expression of the results
12 Test report
Annex A (informative) Repeatability and reproducibility
Bibliography
Defines one fusion and one acid dissolution method for the determination of elements of sodium, potassium, iron, silicon, calcium and magnesium present as impurities in alumina using atomic absorption spectroscopy (AAS) or inductively coupled plasma (ICP) spectroscopy.
| DocumentType |
Standard
|
| Pages |
13
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| NEN EN 725-1 : 2007 | Identical |
| SN EN 725-1:2007 | Identical |
| DIN EN 725-1:2008-06 | Identical |
| UNI EN 725-1 : 2008 | Identical |
| NBN EN 725-1 : 2007 | Identical |
| EN 725-1:2007 | Identical |
| NS EN 725-1 : 2ED 2007 | Identical |
| BS EN 725-1:2007 | Identical |
| NF EN 725-1 : 2007 | Identical |
| ISO/IEC 17025:2005 | General requirements for the competence of testing and calibration laboratories |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| EN ISO 3696:1995 | Water for analytical laboratory use - Specification and test methods (ISO 3696:1987) |
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