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I.S. EN 725-1:2007

I.S. EN 725-1:2007

Current

Current

The latest, up-to-date edition.

ADVANCED TECHNICAL CERAMICS - METHODS OF TEST FOR CERAMIC POWDERS - PART 1: DETERMINATION OF IMPURITIES IN ALUMINA

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2007

Publisher

National Standards Authority of Ireland

Preview

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.

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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Hardcopy - English
PDF - English
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