BS-EN-23995-1993 ISO-3995-1985.pdf
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1、BRITISH STANDARD BS EN 23995:1993 ISO 3995:1985 Specification for Metallic powders Determination of green strength by transverse rupture of rectangular compacts The European Standard EN 23995:1993 has the status of a British Standard UDC 621.762:669-492.2:620.174 Licensed Copy: sheffieldun sheffield
2、un, na, Fri Nov 03 09:16:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 23995:1993 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
3、 02-2000 The following BSI references relate to the work on this standard: Committee reference ISM/65 Special announcement in BSI News January 1993 ISBN 0 580 21925 9 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepar
4、ed, comprises the national standards organizations of the following countries: AustriaOesterreichisches Normungsinstitut BelgiumInstitut belge de normalisation DenmarkDansk Standardiseringsraad FinlandSuomen Standardisoimisliito, r.y. FranceAssociation franaise de normalisation GermanyDeutsches Inst
5、itut fr Normung e.V. GreeceHellenic Organization 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 NorwayN
6、orges Standardiseringsforbund PortugalInstituto 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.
7、 No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:16:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 23995:1993 BSI 02-2000i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 1Scope and field of application3 2Principle3 3Apparatus3 4
8、Sampling3 5Procedure3 6Expression of results4 7Test report5 National annex NA (informative) Committees responsibleInside back cover Figure 1 Example of tooling to produce a rectangular test piece5 Figure 2 Diagram of test fixture6 Figure 3 Example of loading beam apparatus6 Figure 4 Procedure of com
9、pacting and ejection7 Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:16:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 23995:1993 ii BSI 02-2000 National foreword This British Standard has been prepared under the direction of the Iron and Steel Standards Policy Committee and is the E
10、nglish language version of EN 23995:1983 Metallic powders Determination of green strength by transverse rupture of rectangular compacts, published by the European Committee for Standardization (CEN). It is identical with ISO 3995:1985, prepared by Technical Committee 119, Powder metallurgy, of the I
11、nternational Organization for Standardization (ISO) with the active participation of the UK. This British Standard supersedes BS 5600-2.5:1988 which is withdrawn. This edition makes no technical changes to the standard. A British Standard does not purport to include all the necessary provisions of a
12、 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. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2
13、 to 8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:16:12 GMT+00:00 2006, Uncontr
14、olled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 23995 April 1993 UDC 621.762:669-492.2:620.174 Descriptors: Powder metallurgy, metallic powder, compressed products, rectangular shape, mechanical tests, green strength, flexural strength English version Metallic powders Determ
15、ination of green strength by transverse rupture of rectangular compacts (ISO 3995:1985) Poudres mtalliques Dtermination de la rsistance de comprims rectangulaires cru (ISO 3995:1985) Metallpulver Bestimmung der Prekrperfestigkeit von Probekrpern mit rechteckigem Querschnitt unter Biegebeanspruchung
16、(ISO 3995:1985) 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. Up-to-date lists and bibliogr
17、aphical 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
18、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, Netherlands, Norway, Portugal, Spa
19、in, 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 23995:1993 E Licensed Copy: sheffieldun she
20、ffieldun, na, Fri Nov 03 09:16:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 23995:1993 BSI 02-2000 2 Foreword In 1992, ISO 3995:1985 Metallic powders Determination of green strength by transverse rupture of rectangular compacts was submitted to the CEN Primary Questionnaire procedure. Following
21、the positive result of the CEN/CS Proposal ISO 3995:1985 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,
22、 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, Lux
23、embourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:16:12 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 23995:1993 BSI 02-20003 1 Scope and field of application This International Standard specifies a method
24、 for the determination of green strength by measuring the transverse rupture strength of compacts of rectangular cross-section. 2 Principle Subjection of a compact pressed from metallic powder to a uniformly increasing transverse force under controlled conditions until fracture occurs. Determination
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