ISO INTERNATIONAL STANDARD 18070 Firstedition 2015-11-01 Corrosion of metals and alloys Crevice corrosion formers with disc springs for flat specimens or tubes made from stainless steel Corrosion des metaux et alliages-Dispositif d'essaide corrosion par crevasseavecrondellesressort pour échantillons plats outubulaires en acierinoxydable Reference number ISO18070:2015(E) LSO Intermational Organization for Standardization @IS02015 ed without license from IHS IS018070:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS02015,PublishedinSwitzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISo copyright office Ch. de Blandonnet 8.CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122 749 09 47 copyright@iso.org www.iso.org Uicensee-ZHEJIANG INST OF STANDARDIZAoISQJ,5-All rights reserved etworking permitted without license from IHS Not for Resale, 2016/1/8 02:02:1 IS018070:2015(E) Contents Page Foreword ..iv Introduction.. 1 Scope.. 2 Normativereferences 3 Termsand definitions ..1 4 Symbols .1 5 Testspecimen .2 5.1 Specimen specifications .2 5.1.1 Flatspecimens .2 5.1.2 Tubes .2 5.2 Surface preparation of the specimens .2 6 Creviceformerand assembly .2 6.1 General. .2 6.2 Disc springs .2 6.3 Creviceformer 3 6.4 Creviceformersfortubes .4 6.5 Preparationofthecreviceformerssurfaces .5 6.6 Crevice assembly .6 6.7 Ending test. .7 6.8 Cleaning. .7 7 Documentation ..7 AnnexA(informative)Exampleoftestreportformatofdeflectionmeasurements ..8 Bibliography .9 iii See=ZHEJIANG INSTOFSTANDARDIZATIONC15956617 thout license from IHS