EN 725-8:2006

SLOVENSKI STANDARD
01-september-2006
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Advanced technical ceramics - Methods of test for ceramic powders - Part 8:
Determination of tapped bulk density
Hochleistungskeramik - Prüfverfahren für keramische Pulver - Teil 8: Bestimmung der
geklopften Schüttdichte
Céramiques techniques avancées - Méthodes d'essai pour poudres céramiques - Partie
8: Détermination de la masse volumique apres tassement
Ta slovenski standard je istoveten z: EN 725-8:2006
ICS:
81.060.30
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 725-8
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2006
ICS 81.060.30 Supersedes EN 725-8:1997
English Version
Advanced technical ceramics - Methods of test for ceramic
powders - Part 8: Determination of tapped bulk density
Céramiques techniques avancées - Méthodes d'essai pour Hochleistungskeramik - Prüfverfahren für keramische
poudres céramiques - Partie 8: Détermination de la masse Pulver - Teil 8: Bestimmung der geklopften Schüttdichte
volumique après tassement
This European Standard was approved by CEN on 3 February 2006.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 725-8:2006: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope.5
2 Normative references.5
3 Principle .5
4 Apparatus.5
5 Procedure.6
5.1 Sample treatment .6
5.2 Measurement .6
6 Expression of results .6
7 Test report.6
Annex A (informative) Repeatability and reproducibility .10

Foreword
This European Standard (EN 725-8:2006) has been prepared by Technical Committee CEN/TC 184
“Advanced technical ceramics”, the secretariat of which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2006, and conflicting national standards
shall be withdrawn at the latest by September 2006.
This European Standard supersedes EN 725-8:1997.
The main changes in the new edition are:
- revision of the Foreword to reflect changes in the EN 725 series;
- addition of normative references;
- modifications to the apparatus specification;
- modifications to the test report requirements.
EN 725 Advanced technical ceramics — Methods of test for ceramic powders was prepared in Parts
as follows:
Part 1: Determination of impurities in alumina
Part 2: Determination of impurities in barium titanate
Part 3: Determination of oxygen content of non-oxides by thermal extraction with a carrier gas
Part 4: Determination of oxygen content in aluminium nitride by XRF analysis
Part 5 Determination of particle size distribution
Part 6: Determination of specific surface area [withdrawn]
Part 7: Determination of absolute density [withdrawn]
Part 8: Determination of tapped bulk density
Part 9: Determination of un-tapped bulk density
Part 10: Determination of compaction properties
Part 11: Determination of densification on natural sintering
Part 12: Chemical analysis of zirconia
Parts 6 and 7 of the series were superseded in 2005 by EN ISO 18757 and EN ISO 18753
respectively.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech
Republic, Denmar
...