ISO-10289-盐雾判定标准

AReferencenumberISO10289:1999(E)INTERNATIONALSTANDARDISO10289Firstedition1999-10-15Methodsforcorrosiontestingofmetallicandotherinorganiccoatingsonmetallicsubstrates—RatingoftestspecimensandmanufacturedarticlessubjectedtocorrosiontestsMéthodesd'essaidecorrosiondesrevêtementsmétalliquesetinorganiquessursubstratsmétalliques—CotationdeséprouvettesetdesarticlesmanufacturéssoumisauxessaisdecorrosionSISMultiUserLicence:ABBTECHNOLOGYLTD..12/16/2009ISO10289:1999(E)©ISO1999Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromthepublisher.InternationalOrganizationforStandardizationCasepostale56•CH-1211Genève20•[e-mail]ContentsPage1Scope........................................................................................................................................................................12Termsanddefinitions.............................................................................................................................................13Principle....................................................................................................................................................................24Typesofdefect.........................................................................................................................................................25Methodofinspection...............................................................................................................................................36Assignmentofratings.............................................................................................................................................37Testreport................................................................................................................................................................5AnnexA(informative)Dotchartsandcolourphotographsforcoatingscathodictothebasemetal................7AnnexB(informative)Dotchartsforcoatingsanodictothebasemetal............................................................17Bibliography..............................................................................................................................................................22SISMultiUserLicence:ABBTECHNOLOGYLTD..12/16/2009©ISOISO10289:1999(E)iiiForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.InternationalStandardsaredraftedinaccordancewiththerulesgivenintheISO/IECDirectives,Part3.DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothememberbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyatleast75%ofthememberbodiescastingavote.InternationalStandardISO10289waspreparedbyTechnicalCommitteeISO/TC107,Metallicandotherinorganiccoatings,SubcommitteeSC7,Corrosiontests.ThisfirsteditioncancelsandreplacesISO1462:1973,ISO4540:1980andISO8403:1991.AnnexesAandBofthisInternationalStandardareforinformationonly.SISMultiUserLicence:ABBTECHNOLOGYLTD..12/16/2009ISO10289:1999(E)©ISOivIntroductionTheratingmethoddescribedinthisInternationalStandardrecognizesthatdecorativeandprotectivemetallicandinorganiccoatingsonmetallicsubstratescanbeeitheranodicorcathodictothesubstrate.Inratingthesecoatingsfortheeffectsofcorrosion,twoevaluationsshallbemade:theabilityofthecoatingtoprotectthesubstratefromcorrosionandthuspreventdegradationofthebasemetal;theabilityofthecoatingtoretainitsintegrityandthusmaintainasatisfactoryappearance.Althoughthesefunctionsoverlap,theycanbeevaluatedseparatelyintermsof:aprotectionrating(Rp)relatingtothecorrosionofthebasemetal;anappearancerating(RA)relatingtothedeteriorationofthecoating.Theprotectionrating(Rp)assignsanumberrepresentingtheabilityofthecoatingtoprotectthebasemetalfromcorrosion.Theappearancerating(RA)assignsasequenceoflettersandnumberstotheoverallappearanceofthespecimenwhichincludesalldeteriorationcausedbythecorrosiontestorenvironment.NOTE1Imperfectionsonapanelorarticlebeforeexposuretestingshouldbenotedandgivendueconsiderationwhenevaluatingtheresultsoftheexamination.Deliberateimperfectionsmayalsobeintroducedaspartofatestprogramme.Thecoatingsystemhastobeknownandreportedifthisratingsystemisapplied.Itisespeciallyimportanttoknow,ifpossible,whetherthecoatingisanodicorcathodictothebasemetal.NOTE2Determinationoftheanodicandcathodiccorrosivemechanismscanbeextremelydifficultinsomecases(chromatedzinconsteelor