BS EN 725-9-1997 Advanced technical ceramics Methods of test for ceramic powders Part 9. Determination of untamped bulk density.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 725-9 : 1997 The Eu
2、ropean Standard EN 725-9 : 1997 has the status of a British Standard ICS 81.060.99 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Advanced technical ceramics Methods of test for ceramic powders Part 9. Determination of untamped bulk density BS EN 725-9 : 1997 This British Sta
3、ndard, having been prepared under the direction of the Sector Board for Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 July 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference RPI/13 Draft
4、for comment 93/301338 DC ISBN 0 580 27909 X Amendments issued since publication Amd. No.DateText affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee RPI/13, Advanced technical ceramics, upon which the following bodie
5、s were represented: AEATechnology Aluminium Federation British Ceramic Research Ltd. British Industrial Ceramic Manufacturers Association Department of Trade and Industry (National Physical Laboratory) Flat Glass Manufacturers Association GAMBICA (BEAMA Ltd.) Institute of Refractories Engineers Mini
6、stry of Defence Refractories Association of Great Britain Society of British Aerospace Companies Ltd. University of Manchester BS EN 725-9 : 1997 BSI 1997i Contents Page Committees responsibleInside front cover National forewordii Foreword2 Text of EN 725-93 ii BSI 1997 BS EN 725-9 : 1997 National f
7、oreword This British Standard has been prepared by Technical Committee RPI/13 and is the English language version of EN 725-9 : 1997 Advanced technical ceramics Methods of test for ceramic powders Part 9: Determination of untamped bulk density, published by the European Committee for Standardization
8、 (CEN). EN 725-9 : 1997 was produced as a result of international discussions in which the United Kingdom took an active part. EN 725-9 : 1997 has been approved by CEN member bodies under the weighted voting procedures introduced in 1988 to coincide with the introduction of New Approach Directives f
9、rom the Commisssion of the European Community. NOTE. International and European Standards as well as overseas standards, are available from Customer Services, BSI, 389 Chiswick High Road, London, W4 4AL. Compliance with a British Standard does not of itself confer immunity from legal obligations. Su
10、mmary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4, an inside back cover and a back cover. CEN European Committee for Standardization Comite Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: ru
11、e de Stassart 36, B-1050 Brussels 1997 Copyright reserved to CEN members Ref. No. EN 725-9 : 1997 E EUROPEAN STANDARDEN 725-9 NORME EUROPE ENNE EUROPA ISCHE NORM March 1997 ICS 81.060.99 Descriptors: Ceramics, powdery materials, bulk products, tests, determination, bulk density English version Advan
12、ced technical ceramics Methods of test for ceramic powders Part 9: Determination of untamped bulk density Ce ramiques techniques avance es Me thodes dessai pour poudres ce ramiques Partie 9: De termination de la masse volumique apparente en vrac Hochleistungskeramik Pru fverfahren fu r keramische Pu
13、lver Teil 9: Bestimmung der Schu ttdichte This European Standard was approved by CEN on 1996-12-22. 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-
14、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 unde
15、r 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherla
16、nds, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Page 2 EN 725-9 : 1997 BSI 1997 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 shall be given the s
17、tatus of a national standard, either by publication of an identical text or by endorsement, at the latest by September 1997, and conflicting national standards shall be withdrawn at the latest by September 1997. EN 725 consists of 11 parts: Part 1 :Determination of impurities in alumina Part 2 :Dete
18、rmination of impurities in barium titanate (ENV) Part 3 :Determination of oxygen content of non-oxides by thermal extraction Part 4 :Determination of oxygen content of non-oxides by XRF analysis (ENV) Part 5 :Determination of particle size distribution Part 6 :Determination of specific area Part 7 :
19、Determination of 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 reactivity on sintering (ENV) According to the CEN/CENELEC Internal Regulations, the national stan
20、dards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1S
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