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EN ISO 18757:2005

Current
Current

The latest, up-to-date edition.

Fine ceramics (advanced ceramics, advanced technical ceramics) - Determination of specific surface area of ceramic powders by gas adsorption using the BET method (ISO 18757:2003)
Published date

19-10-2005

Publisher

Comite Europeen de Normalisation

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Principle
6 Procedure
  6.1 General procedure
  6.2 Sample preparation
  6.3 Experimental conditions
  6.4 Evaluation of data
7 Test report
Annex A (informative) Sample preparation - Outgassing
Annex B (informative) Reference materials
Bibliography

ISO 18757:2003 provides guidelines for the determination of the total specific external and internal surface area of disperse or porous (pore diameter greater than 2 nm) fine ceramic materials by measuring the amount of physically adsorbed gas according to the method of Brunauer, Emmett and Teller (BET method). This International Standard only focuses on specific details relevant to fine ceramic materials. It should further be noted that the BET method cannot be applied to type I isotherms (microporous materials or chemisorption behaviour) or when the solid adsorbs the measuring gas.

Committee
CEN/TC 184
DevelopmentNote
Supersedes EN 725-6. (12/2005)
DocumentType
Standard
PublisherName
Comite Europeen de Normalisation
Status
Current
Supersedes

CEN/TR 13233 : 2007 COR 2007 ADVANCED TECHNICAL CERAMICS - NOTATIONS AND SYMBOLS
BS EN 725-4:2006 Advanced technical ceramics. Methods of test for ceramic powders Determination of oxygen content in aluminium nitride by XRF analysis
ONORM EN 725-4 : 2006 ADVANCED TECHNICAL CERAMICS - METHODS OF TEST FOR CERAMIC POWDERS - PART 4: DETERMINATION OF OXYGEN CONTENT IN ALUMINIUM NITRIDE BY XRF ANALYSIS
I.S. EN 725-4:2006 ADVANCED TECHNICAL CERAMICS - METHODS OF TEST FOR CERAMIC POWDERS - PART 4: DETERMINATION OF OXYGEN CONTENT IN ALUMINIUM NITRIDE BY XRF ANALYSIS
DIN EN 725-4:2006-07 Advanced technical ceramics - Methods of test for ceramic powders - Part 4: Determination of oxygen content in aluminium nitride by XRF analysis
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
PD CEN/TR 13233:2007 Advanced technical ceramics. Notations and symbols
UNI EN 725-4 : 2006 ADVANCED TECHNICAL CERAMICS - METHODS OF TEST FOR CERAMIC POWDERS - PART 4: DETERMINATION OF OXYGEN CONTENT IN ALUMINIUM NITRIDE BY XRF ANALYSIS
EN 725-4:2006 Advanced technical ceramics - Methods of test for ceramic powders - Part 4: Determination of oxygen content in aluminium nitride by XRF analysis
EN 14232:2009 Advanced technical ceramics - Terms, definitions and abbreviations
BS EN 14232:2009 Advanced technical ceramics. Terms, definitions and abbreviations
DD CEN/TR 13233 : 2007 ADVANCED TECHNICAL CERAMICS - NOTATIONS AND SYMBOLS
I.S. EN 14232:2009 ADVANCED TECHNICAL CERAMICS - TERMS, DEFINITIONS AND ABBREVIATIONS
S.R. CEN TR 13233:2007 ADVANCED TECHNICAL CERAMICS - NOTATIONS AND SYMBOLS

ISO 31-0:1992 Quantities and units Part 0: General principles
ISO 8213:1986 Chemical products for industrial use — Sampling techniques — Solid chemical products in the form of particles varying from powders to coarse lumps
ISO 9277:2010 Determination of the specific surface area of solids by gas adsorption — BET method

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