1、ICS 77.120.30Kupfer und Kupferlegierungen VorlegierungenEuropean Standard EN 1981 : 2003 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 133 Copper and copper alloys (Secretariat: Germany).The responsible German body i
2、nvolved in its preparation was the Normenausschuss Nichteisenmetalle(Nonferrous Metals Standards Committee), Technical Committee Gusslegierungen.AmendmentsSee Foreword on page 3.Previous editionsDIN 17657: 1973-03; DIN EN 1981: 1998-08.Ref. No. DIN EN 1981 : 2003-05English price group 09 Sales No. 1
3、10909.03DEUTSCHE NORM May 2003EN 1981Continued overleaf.EN comprises 12 pages. No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN
4、-Normen).Copper and copper alloysMaster alloysEnglish version of DIN EN 1981Supersedes August 1998 edition.English versionICS 77.120.30Descriptors:Copper and copper alloysMaster alloys 2003. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. N
5、o. EN 1981 : 2003 EKupfer und Kupferlegierungen VorlegierungenThis European Standard was approved by CEN on 2002-11-28.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without an
6、y alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, French, German).A version in any other language made by trans
7、lation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ir
8、eland,Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia, Spain,Sweden, Switzerland, and the United Kingdom.EN 1981February 2003Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr Normung|
9、Cuivre et alliages de cuivre Alliages-mresSupersedes EN 1981 : 1998.Page 2EN 1981 : 2003Page334444455666677777777788881212Page 3EN 1981 : 2003Page 4EN 1981 : 2003Page 5EN 1981 : 2003Page 6EN 1981 : 2003Page 7EN 1981 : 2003Page 8EN 1981 : 2003Page 9EN 1981 : 2003Page 10EN 1981 : 2003Page 11EN 1981 : 2003Page 12EN 1981 : 2003
