BS-EN-24497-1993 ISO-4997-1983.pdf
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1、BRITISH STANDARD BS EN 24497:1993 ISO 4497:1983 Metallic powders Determination of particle size by dry sieving The European Standard EN 24497:1993 has the status of a British Standard UDC 621.762:669-492.2:6210.928.2:620.1 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:50 GMT+00:00 200
2、6, Uncontrolled Copy, (c) BSI BS EN 24497:1993 This British Standard, having been prepared under the direction of the Iron and Steel Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 June 1993 BSI 10-1999 The following BSI references rel
3、ate to the work on this standard: Committee reference ISM/65 Special announcement in BSI News January 1993 ISBN 0 580 21936 4 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises the national standards orga
4、nizations of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Institut fr Normung e.V. GreeceHellenic Organ
5、ization for Standardization IcelandTechnological Institute of Iceland IrelandNational Standards Authority of Ireland ItalyEnte Nazionale Italiano di Unificazione LuxembourgInspection du Travail et des Mines NetherlandsNederlands Normalisatie-instituut NorwayNorges Standardiseringsforbund PortugalIns
6、tituto Portugus da Qualidade SpainAsociacin Espaola de Normalizacin y Certificacin SwedenStandardiseringskommissionen i Sverige SwitzerlandAssociation suisse de normalisation United KingdomBritish Standards Institution Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffield
7、un sheffieldun, na, Fri Nov 03 09:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24497:1993 BSI 10-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 1Scope and field of application3 2References3 3Principle3 4Apparatus3 5Preparation of test portion3
8、 6Procedure3 7Expression of results4 8Test report4 Annex ZA (normative) Normative references to international publications with their relevant European publications5 National annex NA (informative) Committees responsibleInside back cover National annex NB (informative) Cross-referenceInside back cov
9、er Table4 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24497:1993 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is the English langu
10、age version of EN 24497:1993 Metallic powders Determination of particle size by dry sieving, published by the European Committee for Standardization (CEN). It is identical with ISO 4497:1983, published by the International Organization for Standardization (ISO). This British Standard supersedes BS 5
11、600-2.12:1987 which is withdrawn and from which it differs by the addition of Annex ZA. 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
12、itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorp
13、orated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 24497 April 1993 UDC 621.762:669-492.2:6210.928.2:620.1 Des
14、criptors: Powder metallurgy, metallic powder, grain size analysis, sieve analysis, sieves English version Metallic powders Determination of particle size by dry sieving (ISO 4497:1983) Poudres mtalliques Dtermination de la granulomtrie par tamisage sec (ISO 4497:1983) Metallpulver Bestimmung der Tei
15、lchengren durch Trockensiebung (ISO 4497:1983) This European Standard was approved by CEN on 1993-04-02. 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
16、. 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
17、 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, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Net
18、herlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1993 Copyright reserved to CEN members Ref. No. EN 24497:1993 E
19、 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 24497:1993 2 BSI 10-1999 Foreword In 1992, ISO 4497:1983 Metallic powders Determination of particle size by dry sieving was submitted to the CEN Primary Questionnaire procedure. Following t
20、he positive result of the CEN/CS Proposal ISO 4497:1983 was submitted to the Formal Vote. The result of the Formal Vote was positive. 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 1993,
21、and conflicting national standards shall be withdrawn at the latest by October 1993. According to the Internal Regulations of CEN/CENELEC, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxe
22、mbourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. NOTEThe European references to international publications are given in Annex ZA (normative). Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:50 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 24497:1993 BSI
23、 10-19993 1 Scope and field of application This International Standard specifies a method of determining the particle size distribution of metallic powders by dry sieving into size fractions. The method is applicable to dry, unlubricated metallic powders, but not applicable to powders in which the m
24、orphology differs markedly from being equiaxial, for example flake-type powders. The method is not applicable to metallic powders having a particle size wholly or mostly under 45 4m. 2 References ISO 565, Test sieves Woven metal wire cloth, perforated plate and electroformed sheet Nominal sizes of o
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