BS ISO 17918:2015 BSl Standards Publication Corrosion of metals and alloys - Evaluation of selective corrosion of Cu alloys and grey cast iron for power plant components by visual inspection and hardness measurement bsi. ..making excellenCe a habit. BS ISO 17918:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 17918:2015. 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 2015.Published by BSI Standards Limited 2015 ISBN9780580792175 ICS 77.060 Compliance witha BritishStandard cannot conferimmunityfrom legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2015. Amendments issued since publication Date Text affected BS ISO 17918:2015 ISO 17918 INTERNATIONAL STANDARD First edition 2015-07-01 Corrosion of metals and alloys Evaluation of selective corrosion of Cu alloys and grey cast iron for power plant components by visual inspection and hardness measurement Corrosion des metaux et alliages-Evaluation dela corrosion selective des alliages de cuivre et des fontes grises dans les la durete OSL ISORefeyqc2og bEy @IS02015 BS ISO 17918:2015 IS017918:2015(E) COPYRIGHTPROTECTEDDOCUMENT @IS0 2015 AHbyghtyraeansedlalestronicotherwipemifiedlaniclaindfutisgpplbbicatbpyimgyolbqnsthgintprndtiocedntnttiliaet) otineamyisowithoutprior written permission. Permission can be requested from either ISO at the address below or ISo's member body in the country of the requester. SSeoitalght officeCH-1211 Geneva 20 Tel. + 422749 0111 Fax + 41 22 749 09 47 Ww.whiso.org Published in Switzerland ii @ IS0 2015 - All rights reserved BSISO 17918:2015 IS0 17918:2015(E) Contents Foreword iv 1 2 3 4 4.2 Visualinspectionandcomponentstestsubjectedselectivecorrosionselective 3 5 6 AnnexA (informative)Datasheetofvisual inspectionfor selectivecorrosionofalloys AnnexD (informative)Datasheetofhardnesstestfor selectivecorrosionofalloys (example)...11 Bibliography 21 0 2015 -All rights reserved Page Introduction Scope 1 Terms and definitions 1 Principle Procedures. 2 4.1 Selectionofcomponentssensitivetoselectivecorrosionandcomponentsforthetest 4.1.1 Componentssensitivetoselectivecorrosionofalloys. 2 4.1.2 Selection ofhardness for to thetest for on alloyscorrosion 4.3 Procedureofvisual inspectionforselectivecorrosionofalloys. 3 4.4 Procedure ofhardnesstestforselectivecorrosion onalloys 4 ili Responsibility 5 Assessmentcriteriaandcorrectiveactions 6.1 Assessmentcriteria. 6 6.2 Correctiveactionsforunsatisfactoryresults AnnexB (informative) Description sheetfor damaged area from selectivecorrosion ofalloys AnnexC (informative)Evaluationsheetof hardnesstestresultsforselectivecorrosion ofalloys.1o AnnexE (informative) Photo samples of case histories for selective corrosion 12 BS ISO 17918:2015 IS0 17918:2015(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards thundiegh(IsO tecamicet codbiesfthsewofkaf ptapbeingbodyInitteresitedailhStandebjdsti soowhidhycarrtiechaital committeehasbeen established hastherighttoberepresentedonthatcommittee.International organizations, governmental and non-governmental, in liaison with Iso, also take part in the work. ISO collaborates closely withthe electrotechnical standardization.International Electrotechnical Commission (IEC)on allmatters of The procedures used to develop this document and those intended for its further maintenance are editorialrulesof theIsO/IECDirectives,Part2 (seewww.iso.org/directives). Rttentionrights.fawrshtah hetpelsibilithassomsible fbe demfring anyafosth aateneay hgtbe Detailsfubyectany patentri