BS EN ISO 9225:2012 BSl Standards Publication Corrosion of metals and alloys Corrosivity of atmospheres Measurement of environmental parameters affecting corrosivity of atmospheres (IS0 9225:2012) bsi. ..making excellence a habit BS EN ISO 9225:2012 BRITISH STANDARD National foreword This British Standard is the UK implementation of BS EN 12500:2000, which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee ISE/NFE/8, Corrosion of metals and alloys. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. @ The British Standards Institution 2012 Published by BSI Standards Limited 2012 ISBN9780580690303 ICS 77.060 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments issued sincepublication Date Text affected EN ISO 9225 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHENORM February 2012 ICS 77.060 Supersedes EN12500:2000 English Version Corrosion of metals and alloys - Corrosivity of atmospheres Measurement of environmental parameters affecting corrosivity ofatmospheres(ISO9225:2012) Corrosion des metaux et alliages - Corrosivite des Korrosion von Metallen und Legierungen - Korrosivitat von atmospheres - Mesurage des parametres Atmospharen - Messung der die Korrosivitat von environnementaux affectant la corrosivite des atmospheres Atmospharen beeinflussenden Umweltparameter (ISO (ISO 9225:2012) 9225:2012) CEN members are bound to comply with the CEN/CENELEC Intemal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre 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 CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia. Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. cen EUROPEAN COMMITTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FUR NORMUNG Management Centre:AvenueMarnix17,B-100oBrussels 2012CEN All rights of exploitation in any form and by any means reserved Ref.No.ENISO 9225:2012:E worldwide for CEN national Members. ENISO9225:2012(E) BSENISO9225:2012 Foreword This document (EN ISO 9225:2012)has been prepared by Technical CommitteeISO/TC 156"Corrosion of metals and alloys" in collaboration with Technical Committee CEN/TC 262 "Metallic and other inorganic coatings" the secretariat of which is held by BSl. This European Standard shall be given the status of a national standard, either by publication of an identical the latest by August 2012. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent This document supersedes EN12500:2000 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Lithuania, Luxembourg, Malta, Netherlands, Norway,Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsementnotice BSENISO9225:2012 ISO9225:2012(E) Contents Page Foreword iv Introduction 1 S