ition-10Anodizingofaluminiumanditsalloys—EstimationoflossofingDyespottesthprioracidtreatmentAnodisationdel'aluminiumetdesesalliages—AppréciationdelarabsorbantdescouchesanodiquesaprscolmatagessailagouttedecolorantaprstraitementacideLicensedtoSong,GuanyuMrnloadedingleuserlicenceonlycopyingandnetworkingprohibitedISOE)?ISO2017ISOESOPublishedinSwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO’smemberbodyinthecountryofquestertofficeChdeBlandonnetCP401Tel0111Fax47oorgcensedtoSongGuanyuMrAllrightsreservedSingleuserlicenceonlycopyingandnetworkingprohibitedISOE on v1Scope 1Normativereferences 13Termsanddefinitions 14Principle 15Reagents 26Testspecimens 27Procedure 38Expressionofresults 39Testreport 3eInterpretationoftheresultsofthedyespottest hy censedtoSongGuanyuMrnloadedsreserved?ISOSingleuserlicencesreservedISOEternationalOrganizationforStandardizationisaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.InparticularthedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentsshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(see/directives).Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/orontheISOlistofpatentdeclarationsreceived(see/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexplanationonthevoluntarynatureofstandards,themeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISO'sadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT)seethefollowingURL:/iso/foreword.html.ThisdocumentwaspreparedbyTechnicalCommitteeISO/TC79,Lightmetalsandtheiralloys,mitteeSCOrganicandanodicoxidationcoatingsonaluminiumThisthirdeditioncancelsandreplacesthesecondedition(ISO2143:2010),whichhasbeentechnicallyrevised.Themainchangescomparedtothepreviouseditionareasfollows:—informationonthetestspecimenhasbeenadded;—theimmersionmethodhasbeenadded.censedtoSongGuanyuMrAllrightsreservedSingleuserlicenceonlycopyingandnetworkingprohibitedISOETheresistanceofanodicoxidationcoatingstotheabsorptionofdyesgivesinformationonthequalityofsealing,thetotalresistanceindicatingwhetherthequalityofsealingisgood.Thecorrelationoftheresultsobtainedwiththoseofotherteststhatcanassesssealingquality,suchasthatofISO2931,canbeaffectedbythepresenceofcertainagentshavingbeenaddedtothesealingbath.Forthisreason,thequalityischeckedfromtimetotimebyoneofthereferenceacid-dissolutionmethodsspecifiedinISO3210.censedtoSongGuanyuMrnloaded?ISO2017–Allrightsreserved?ISO2017–AllrightsreservednetworkingprohibitedvcensedtoSongGuanyuMrnloadedSingleuserlicenceonlycopyingandnetworkingprohibitedISOEAnodizingofaluminiumanditsalloys—EstimationofwithprioracidtreatmentIMPORTANT—Theelectronicfileofthisdocumentcontainscolourswhichareconsideredtobeusefulforthecorrectunderstandingofthedocument.Usersshouldthereforeconsiderprintingthisdocumentusingacolourprinter.copeThisdocumentspecifiesamethodofestimatingthelossofabsorptivepowerofanodicoxidationcoatingsthathaveundergoneasealingtreatment,bydyeabsorptionafteracidpretreatment.Themethodissuitableforuseasaproductioncontrolmethodandcanbeapplicabletoanodicoxidationcoatingswhichmaybesubjectedtoweatheringoraggressiveenvironments,orwhereresistancetostainingisimportant.Themethodisnotapplicabletothosecoatingsthata)areformedonalloyscontainingmorethan2%copperor4%silicon,b)aresealedbythedichromateprocess,c)havebeengivensupplementaryprocessing,e.g.oiling,waxingorlacquering,d)arecolouredindeepshades,ande)arelessthan3μmthickness.Themethodislessappropriatewherenickelorcobaltsalts,ororganicadditives,havebeenaddedtobathsusedforhydrothermalsealing.esThefollowingdocumentsarereferredtointhetextinsuchawaythatsomeoralloftheircontentconstitutesrequirementsofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.ISOAnodizingofaluminiumanditsalloys—TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninISO7583apply.ISOandIECmaintainterminologicaldatabasesforuseinstandardizationatthefollowingaddresses:—ISOOnlinebrowsingplatform:availableat/obp—IECElectropedia:availableat/4PrincipleAdegreasedareaofananodicoxidationcoatingissubjectedtotheactionofanacidandthecolorationnloadedAllrightsreservedSingleuserAllrightsreserved1ISOEtsUseonlyreagentsofrecognizedanalyticalgradeanddistilledwaterordeionizedwater.Theacidsolutionsspecifiedin5.1.1and5.1.2maybeusedequallyforeitherdye-spottest,buttheacidsolutionspecifiedin5.1.1ispreferredforsafetyreasons.AcidsolutionsWARNING—Theseacidsolutionscontainhydrofluoricacidandshouldbestoredinappropriatecontainersandhandledwithgreatcautionandappropriatepreventativemeasures.utionASolutioncontaining25mlofsulfuricacid(ρ20=1,84g/ml)and10gofpotassiumfluorideperlitre.AcidsolutionBSolutioncontaining25mloffluorosilicicacid(H2SiF6)(ρ20=1,29g/ml)perlitre.yesolutionsnAAqueoussolutioncontaininggofSanodyeBlueLWformerlySanodalBlue2LW(ColourIndexMordantBlue69)perlitre,adjusted,atapproximately23°C,toapHof5,0±0,5withdilutesulfuricacidsolutionorwithdilutesodiumhydroxidesolution.DyesolutionBfSanodalRedBLWColourIndexAcidRedperlitreadjustedatapproximately23°C,toapHof5,7±0,5withdilutesulfuricacidsolutionorwithdilutesodiumhydroxidesolution.Thetestshallbecarriedoutusingasignificantsurfaceofproductionarticlesortestspecimentakenfromthem.Whereitisimpossibletotesttheproductionarticlesortestspecimentakenfromthem,asubstitutetestspecimenmaybeused.However,inthiscase,thesubstitutetestspecimenusedshallbeonewhichisrepresentativeoftheproductanditshallbemadefromthesamematerialandpreparedunderthesameconditionsoffinishingasthoseusedforthepreparationoftheproduct.Thekindandtemperofthealuminiumalloyandthesurfaceconditionbeforetreatmentshouldbethesameasthoseoftheproduct.Pretreatmentandanodizingshouldbeperformedinthesamebathandunderthesameconditionsasthetreatmentoftheproduct.ailablecommerciallyThisinformationisgivenfortheienceofusersofthisdocumentanddoesnotconstituteanendorsementbyISOofthisproducttDownloaded:2022-12-29Singleuserlicenceonlycopyingandnetworkingprohibited2SingleuserlicenceonlycopyingandnetworkingprohibitedISOEcedureWARNING—Whereorganicsolventsareused,carryout,inparticular,thedegreasingoperationinaccordancewithanyapplicablerequirementsforoccupationalhealthandsafetyaimingatprotectionagainstsolventvapour.Cleanthesurfaceofthetestarea,removinganygreasewithapieceofcottonwoolsoakedin,forexample,acetoneorethanol96%.ApplyonedropofacidsolutionA(5.1.1)oracidsolutionB(5.1.2),atapproximately23°C,tothehorizontal,clean,drytestareasurfaceandallowittoremainfor1min.Removethedropofacidsolutionandwashanddrythesurfaceofthetestareawithoutapplyingheat.ApplyonedropofdyesolutionA(5.2.1)ordyesolutionB(5.2.2)tothespottreatedpreviouslyinthetestareawithacidsolutionandallowittoremainfor1min.Washoffthedropofdyeandcleanthesurfaceofthetestareathoroughlybyrubbingwithacleanclothsoakedinwaterandlightabrasive,suchasmagnesiawhitingoranequivalentabrasive,for20s.Rinsethoroughlyanddry.Thetestmaybecarriedoutbyanimmersionmethodinsteadofthedroppingmethod.Insuchcircumstances,thetestspecimenisimmersedintheacid,dyeandwashingsolutions.Animmersionmethodcanbeappropriateforproductswithcurvedsurfaceswheredropsofsolutionsdonotremainonthesurfaces.ExaminethesurfaceofthetestareaandassesstheintensityofthestainbycomparisonwiththeexamplesillustratedinAnnexAorassessthecolourdifferenceofthetestspecimenbeforeandafterthedyingusingacolorimeter.ExpressionofresultsExpressthelossofabsorptivepowerinaccordancewiththeclassificationgiveninAnnexA,orasanumericalvalueoftheintensityofthestaininaccordancewithAnnexAorthecolourdifference.Thetestreportshallincludeatleastthefollowinginformation:aareferencetothisdocument,i.e.ISO2143:2017;b)thetypeandidentificationoftheproducttested;c)theanodizingspecification(whereknown);d)theacidtreatmentusedinthetest(see5.1.1or5.1.2);e)thecolourofthedyesolutionusedinthetest(see5.2.1or5.2.2);f)whetherthedroppingmethodortheimmersionmethodwasused;g)thelossofabsorptivepower,ortheintensityofthestainorthecolourdifferenceasanumericalvalueseeClause8);NOTEAcceptancelevelsarenormallyspecifiedintherelevantproductspecification.h)anyobservationsconcerningthecond