1、European Standard EN ISO 13900 : 2002 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been published in accordance with a decision taken by ECISS/TC 20 to adopt, withoutalteration, International Standard ISO 13900 as a European Standard.The r
2、esponsible German body involved in its preparation was the Normenausschuss Eisen und Stahl (Steeland Iron Standards Committee), Technical Committee Analysenverfahren.ICS 77.040.30Stahl Bestimmung des Borgehaltes Curcumin-Verfahren Photometrische Bestimmung nachDestillation (ISO 13900 : 1997)Ref. No.
3、 DIN EN ISO 13900 : 2002-10English price group 09 Sales No. 110903.03DEUTSCHE NORM October 2002EN ISO 13900EN comprises 14 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
4、 exclusive right of sale for German Standards (DIN-Normen).Steel Determination of boron contentCurcumin spectrophotometric method after distillation(ISO 13900 : 1997)English version of DIN EN ISO 13900English versionICS 77.080.20Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committe
5、e for StandardizationComit Europen de NormalisationEuropisches Komitee fr NormungSteel Determination of boron contentCurcumin spectrophotometric method after distillation(ISO 13900 : 1997) 2002. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Re
6、f. No. EN ISO 13900 : 2002 EAciers Dosage du bore Mthodespectrophotomtrique la curcumineaprs distillation (ISO 13900 : 1997)Stahl Bestimmung des Borgehaltes Curcumin-Verfahren PhotometrischeBestimmung nach Destillation(ISO 13900 : 1997)This European Standard was approved by CEN on 2002-05-26.CEN mem
7、bers are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this European Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application
8、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 translation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as
9、 the official versions.CEN members are the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, Malta, the Netherlands, Norway, Portugal, Spain, Sweden, Switzer-land, and the United Kingdom.July 2002EN ISO 13
10、900Page 2EN ISO 13900 : 2002ForewordInternational StandardISO 13900 : 1997 Steel Determination of boron content Curcumin spectrophotometric method after dis-tillation,which was prepared by ISO/TC 17 Steel of the International Organization for Standardization, has beenadopted by ECISS/TC 20 Methods o
11、f chemical analysis of ferrous products, the Secretariat of which is heldby SIS, as a European Standard.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, and conflicting national standards withdrawn, by January 2003
12、at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, M
13、alta, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 13900 : 1997 was approved by CEN as a European Standard withoutany modification.NOTE: Normative references to international publications are listed
14、 in Annex ZA (normative).Page 3EN ISO 13900 : 2002Page 4EN ISO 13900 : 2002Page 5EN ISO 13900 : 2002Page 6EN ISO 13900 : 2002Page 7EN ISO 13900 : 2002Page 8EN ISO 13900 : 2002Page 9EN ISO 13900 : 2002Page 10EN ISO 13900 : 2002Page 11EN ISO 13900 : 2002Page 12EN ISO 13900 : 2002Page 13EN ISO 13900 : 2002Page 14EN ISO 13900 : 2002
