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CEN
EN 725-2:2007

EN 725-2:2007

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Advanced technical ceramics - Methods of test for ceramic powders - Part 2: Determination of impurities in barium titanate

Withdrawn date

31-05-2008

Published date

01-11-2007

Publisher

Comite Europeen de Normalisation

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

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:Sr4 mg/g (4 000 ppm)Ca500 ug/g (500 ppm)K200 ug/g (200 ppm)Na, Mg, Al, Fe, Nb100 g/g (100 ppm)The minimum concentration or detection limits are from 1 ug/g to 5 ug/g (1 ppm to 5 ppm).

Committee
CEN/TC 184
DevelopmentNote
Supersedes ENV 725-2. (11/2007)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Withdrawn
Supersedes

Standards Relationship
ONORM EN 725-2 : 2008 Identical
NEN EN 725-2 : 2007 Identical
UNI EN 725-2 : 2009 Identical
PN EN 725-2 : 2008 Identical
BS EN 725-2:2007 Identical
NF EN 725-2 : 2008 Identical
NBN EN 725-2 : 2008 Identical
UNE-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
SN EN 725-2 : 2008 Identical

UNI EN 14232 : 2009 ADVANCED TECHNICAL CERAMICS - TERMS, DEFINITIONS AND ABBREVIATIONS
09/30185903 DC : 0 BS EN 14232 - ADVANCED TECHNICAL CERAMICS - TERMS, DEFINITIONS AND ABBREVIATIONS
PREN 14232 : DRAFT 2009 ADVANCED TECHNICAL CERAMICS - TERMS, DEFINITIONS AND ABBREVIATIONS
EN 14232:2009 Advanced technical ceramics - Terms, definitions and abbreviations
BS EN 14232:2009 Advanced technical ceramics. Terms, definitions and abbreviations
I.S. EN 14232:2009 ADVANCED TECHNICAL CERAMICS - TERMS, DEFINITIONS AND ABBREVIATIONS

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories

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