SIST EN 623-1:2007

SLOVENSKI STANDARD
01-januar-2007
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Advanced technical ceramics - Monolithic ceramics - General and textural properties -
Part 1: Determination of the presence of defects by dye penetration
Hochleistungskeramik - Monolithische Keramik - Allgemeine und strukturelle
Eigenschaften - Teil 1: Prüfung auf Anwesenheit von Oberflächenfehlern durch
Farbstoffeindringtests
Céramiques techniques avancées - Céramiques monolithiques - Propriétés générales et
texturales - Partie 1: Détermination de la présence de défauts a l'aide d'essai de
ressuage
Ta slovenski standard je istoveten z: EN 623-1:2006
ICS:
81.060.30 Sodobna keramika Advanced ceramics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 623-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2006
ICS 81.060 Supersedes EN 623-1:1995
English Version
Advanced technical ceramics - Monolithic ceramics - General
and textural properties - Part 1: Determination of the presence of
defects by dye penetration
Céramiques techniques avancées - Céramiques Hochleistungskeramik - Monolithische Keramik -
monolithiques - Propriétés générales et texturales - Partie Allgemeine und strukturelle Eigenschaften - Teil 1: Prüfung
1: Détermination de la présence de défauts à l'aide d'essai auf Anwesenheit von Oberflächenfehlern durch
de ressuage Farbstoffeindringtests
This European Standard was approved by CEN on 6 March 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,
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Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 623-1:2006: E
worldwide for CEN national Members.

Contents Page
Foreword.3
1 Scope.4
2 Normative references.4
3 Apparatus.4
4 Test pieces.4
5 Procedure.5
5.1 Method A: Fuchsine dye test using evacuation.5
5.2 Method B: Fluorescent dye test .5
5.3 Method C: Fuchsine dye test using immersion or spraying .5
6 Examination.6
7 Test report.6

Foreword
This European Standard (EN 623-1:2006) 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 October 2006, and conflicting national standards
shall be withdrawn at the latest by October 2006.
This European Standard supersedes EN 623-1:1995, which was prepared under a mandate given to
CEN by the European Commission and the European Free Trade Association.
EN 623 Advanced technical ceramics — Monolithic ceramics - General and textural properties
consists of five parts:
Part 1: Determination of the presence of defects by dye penetration tests
Part 2: Determination of density and porosity
Part 3: Determination of grain size and size distribution (characterized by the linear intercept
method)
Part 4: Determination of surface roughness
Part 5: Determination of phase volume fraction by evaluation of micrographs
The main changes in the new edition are:
 addition of normative reference to EN ISO 17025;
 modifications to the apparatus specification and test procedures;
 modifications to the test report requirements.
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, 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.

At the time of publication of this European Standard, Part 5 was a European Pre-standard.
1 Scope
This part of EN 623 specifies qualitative methods for determination of the presence of defects in
advanced technical ceramics by dye penetration tests. The results are reported as visual observations
of dye penetration.
Three methods are described:
Method A: A fuchsine dye test which is suitable for white or pale-coloured ceramic products,
performed using an evacuation test.
Method B: A fluorescent dye test which is suitable particularly for those products where the purple
fuchsine has insufficient visual contrast with the ceramic material, performed using a proprietary test
kit.
Method C: A fuchsine dye test which is performed by simple immersion in or spraying with a dye
solution, suitable for routine testing for major defects.
2 Normative references
The following referenced documents are indispensable
...