BS EN 725-12-2001 Advanced technical ceramics — Methods of test for ceramic powders — Part 12 Chemical analysis of zirconia.pdf
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1、BRITISH STANDARD BS EN 725-12:2001 Advanced technical ceramics Methods of test for ceramic powders Part 12: Chemical analysis of zirconia The European Standard EN 725-12:2001 has the status of a British Standard ICS 81.060.30 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Cop
2、yright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:29:16 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- BS EN 725-12:2
3、001 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37668 0 National foreword This British Standard is the of
4、ficial English language version of EN 725-12:2001. The UK participation in its preparation was entrusted to Technical Committee RPI/13, Advanced technical ceramics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cro
5、ss-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “ International Standards Correspondence Index” , or by using the “ Find” facility of the BSI Standards Elect
6、ronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to underst
7、and the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover,
8、 an inside front cover, the EN title page, pages 2 to 20, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Copyright British Standards Institution Reproduced
9、 by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:29:16 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 725-12 A
10、pril 2001 ICS 81.060.30 English version Advanced technical ceramics - Methods of test for ceramic powders - Part 12: Chemical analysis of zirconia Cramiques techniques avances - Mthodes dessai pour poudres cramiques - Partie 12: Analyse chimique de zircone Hochleistungskeramik - Prfverfahren fr kera
11、mische Pulver - Teil 12: Chemische Analyse von Zirconiumoxid This European Standard was approved by CEN on 19 February 2001. 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 wi
12、thout any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language m
13、ade by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland,
14、 Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2001 CENAll rights of exploitation in
15、 any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 725-12:2001 E Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:29:16 MST Questions or com
16、ments about this message: please call the Document Policy Group at 303-397-2295. -,-,- Page 2 EN 725-12:2001 Contents Page Foreword3 1 Scope4 2 Normative references4 3 Concentration ranges5 4 Principle5 5 Reagents5 6 Apparatus7 7 Test sample7 8 Sample preparation8 9 Calibration10 10 Adjustment of th
17、e apparatus14 11 Measurements16 12 Expression of results17 13 Accuracy18 14 Test report19 Bibliography20 Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS Licensee=Bureau Veritas/5959906001, 11/08/2004 05:29:16 MST Questions
18、 or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- ? Page 3 EN 725-12:2001 Foreword This European Standard has been prepared by Technical Committee CEN/TC 184 “Advanced technical ceramics“, the secretariat of which is held by BSI. This European Standard sha
19、ll be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2001, and conflicting national standards shall be withdrawn at the latest by October 2001. EN 725 Methods of test for ceramic powders consists of 12 Parts: Part 1:Det
20、ermination of impurities in alumina Part 2:Determination of impurities in barium titanate (ENV) Part 3:Determination of the oxygen content of non-oxides by thermal extraction with a carrier gas Part 4:Determination of oxygen content in aluminium nitride by XRF analysis (ENV) Part 5:Determination of
21、the particle size distribution Part 6:Determination of the specific surface area Part 7:Determination of the absolute density Part 8:Determination of tapped bulk density Part 9:Determination of untamped bulk density Part 10: Determination of compaction properties Part 11: Determination of densificat
22、ion on natural sintering (ENV) Part 12: Chemical analysis of zirconia This standard includes a bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Repub
23、lic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Copyright British Standards Institution Reproduced by IHS under license with BSI - Uncontrolled Copy Document provided by IHS License
24、e=Bureau Veritas/5959906001, 11/08/2004 05:29:16 MST Questions or comments about this message: please call the Document Policy Group at 303-397-2295. -,-,- ? Page 4 EN 725-12:2001 1 Scope This part of EN 725 specifies methods for the determination of the levels of silicon, aluminium, titanium, iron,
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