1、ICS 25.220.40Metallische berzge Porenprfungen Bestimmung des Porenanteils in Gold- oder Palladiumber-zgen auf schwefliger Sure/Schwefeldioxiddampf (ISO 15721 : 2001)European Standard EN ISO 15721 : 2001 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis stan
2、dard has been published in accordance with a decision taken by CEN/TC 262 to adopt, withoutalteration, International Standard ISO 15721 as a European Standard.The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Ma-terials Testing Standards Committee), Tech
3、nical Committee Mess- und Prfverfahren fr metallische undanorganische berzge.The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are asfollows:ISO Standard DIN StandardISO 2064 DIN EN ISO 2064ISO 2079 DIN 50902ISO 2080 DIN 50902ISO 10308 DIN EN ISO 10308N
4、ational Annex NAStandards referred to(and not included in Normative references and Annex ZA)DIN 50902 Protective coatings on metals Concepts, application methods and surface prepara-tionDIN EN ISO 2064 Metallic and other inorganic coatings Definitions and conventions concerning themeasurement of thi
5、ckness (ISO 2064 : 1996)DIN EN ISO 10308 Metallic coatings Review of porosity tests (ISO 10308 : 1995)Ref. No. DIN EN ISO 15721 : 2001-08English price group 08 Sales No. 110812.01DEUTSCHE NORM August 2001EN ISO 15721Continued overleaf.EN comprises 10 pages. No part of this standard may be reproduced
6、 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-Normen).Metallic coatings Porosity testsPorosity in gold or palladium coatings by sulfurous acid/sulfurdioxide vapour (I
7、SO 15721 : 2001)English version of DIN EN ISO 15721English versionICS 25.220.40Metallic coatings Porosity testsPorosity in gold or palladium coatings by sulfurous acid/sulfurdioxide vapour(ISO 15721 : 2001) 2001. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN n
8、ational members.Ref. No. EN ISO 15721 : 2001 EMetallische berzge Porenprfungen Bestimmung desPorenanteils in Gold- oder Palladium-berzgen auf schwefliger Sure/Schwefeldioxiddampf(ISO 15721 : 2001)This European Standard was approved by CEN on 2001-04-15.CEN members are bound to comply with the CEN/CE
9、NELEC 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 national stand-ards may be obtained on application to the Management Centre or to anyCEN
10、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 the official versions.CEN members are
11、 the national standards bodies of Austria, Belgium, the CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,Luxembourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland,and the United Kingdom.EN ISO 15721April 2001Management Centre: rue de Stassart 36, B-10
12、50 BrusselsEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr NormungRevtements mtalliques Essais deporosit Porosit des revtementsdor ou de palladium par essai lacidesulfureux/vapeur de dioxyde de soufre(ISO 15721 : 2001)Page 2EN ISO 15721 : 2001ForewordIntern
13、ational StandardISO 15721 : 2001 Metallic coatings Porosity tests Porosity in gold or palladium coatings by sulfurous acid/sulfurdioxide vapour,which was prepared by ISO/TC 107 Metallic and other inorganic coatings of the International Organization forStandardization, has been adopted by Technical C
14、ommittee CEN/TC 262 Metallic and other inorganic coatings, theSecretariat of which is held by BSI, as a European Standard.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, and conflicting national standards withdrawn
15、, by October 2001 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Ita
16、ly, Luxem-bourg, the Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 15721 : 2001 was approved by CEN as a European Standard without anymodification.NOTE: Normative references to international publications are listed in Annex ZA (normative).234455556788910Page 3EN ISO 15721 : 2001Page 4EN ISO 15721 : 2001Page 5EN ISO 15721 : 2001Page 6EN ISO 15721 : 2001Page 7EN ISO 15721 : 2001Page 8EN ISO 15721 : 2001Page 9EN ISO 15721 : 2001Page 10EN ISO 15721 : 2001
