BS-EN-24496-1993 ISO-4496-1978.pdf
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1、BRITISH STANDARD BS EN 24496:1993 ISO 4496:1978 Metallic powders Determination of acid insoluble content in iron, copper, tin and bronze powders The European Standard EN 24496:1993 has the status of a British Standard UDC 621.762:669-492.2:620.1:543.726 Licensed Copy: sheffieldun sheffieldun, na, Fr
2、i Nov 03 09:15:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24496:1993 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 12-1999 T
3、he following BSI references relate to the work on this standard: Committee reference ISM/65 Special announcement BSI News January 1993 ISBN 0 580 21939 9 Cooperating organizations The European Committee for Standardization (CEN), under whose supervision this European Standard was prepared, comprises
4、 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 Institut fr Normu
5、ng 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 NorwayNorges Standar
6、diseringsforbund 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. No.DateComme
7、nts Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24496:1993 BSI 12-1999i Contents Page Cooperating organizationsInside front cover National forewordii Foreword2 1Scope3 2Field of application3 3Reagents3 4Apparatus3 5Sampling3 6Proce
8、dure4 7Expression of results5 8Test report5 National annex NA (informative) Committees responsibleInside back cover Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 24496:1993 ii BSI 12-1999 National foreword This British Standard has b
9、een prepared under the direction of the Iron and Steel Standards Policy Committee and is the English language version of EN 24496:1993 Metallic powders Determination of acid insoluble content in iron, copper, tin and bronze powders, published by the European Committee for Standardization (CEN). It i
10、s identical with ISO 4496:1978, published by the International Organization for Standardization (ISO). This British Standard supersedes BS 5600-2.9:1980 which is withdrawn. This edition makes no technical changes to the standard. A British Standard does not purport to include all the necessary provi
11、sions 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. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN title pag
12、e, 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 incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:47 GMT+00:00 200
13、6, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 24496 April 1993 UDC 621.762:669-492.2:620.1:543.726 Descriptors: Powder metallurgy, metallic powder, iron, copper, tin, bronzes, chemical analysis, determination of content, acids, insoluble matter English version Me
14、tallic powders Determination of acid insoluble content in iron, copper, tin and bronze powders (ISO 4496:1978) Poudres mtalliques Dtermination de la teneur en insolubles dans les acides pour les poudres de fer, de cuivre, dtain et de bronze (ISO 4496:1978) Metallpulver Bestimmung der sureunlslichen
15、Bestandteile in Eisen-, Kupfer-, Zinn- und Bronzepulvern (ISO 4496:1978) 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 stand
16、ard without any alteration. 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 la
17、nguage made by translation 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, Irela
18、nd, Italy, Luxembourg, Netherlands, 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 member
19、s Ref. No. EN 24496:1993 E Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 24496:1993 BSI 12-1999 2 Foreword In 1992, ISO 4496:1978 Metallic powders Determination of acid insoluble content in iron, copper, tin and bronze powders was submi
20、tted to the CEN Primary Questionnaire procedure. Following the positive result of the CEN/CS Proposal ISO 4496:1978 was submitted to the CEN 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 i
21、dentical text or by endorsement, at the latest by October 1993, and conflicting national standards shall be withdrawn at the latest by October 1993. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Fi
22、nland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Fri Nov 03 09:15:47 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 24496:1993 BSI 12-19993 1 Scope This Internati
23、onal Standard specifies methods for determining, in iron, copper, tin and bronze powders, the approximate content of non-metallic materials which are insoluble in the ordinary mineral acids. The insoluble matter referred to is generally considered to be acid-insoluble silica and silicates, carbides,
24、 alumina, clays or other refractory oxides which are either present in the raw material from which the powders are manufactured or introduced during the manufacturing process. 2 Field of application The methods are applicable to lubricant-free metallic powders of iron, copper, tin, alloy bronze and
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