1、INTERNATIONA1.STANDARDISO4524-3editionSecond2021-10Meta1.1.iccoatingsTestmethodsfore1.ectrodepositedgo1.dandgo1.da1.1.oycoatings一F照生OgraPhiCtestsforporosityRevetementsmeta1.1.iquesMethodesdessaidesdepotsdectro1.ytiquesd,oretdtaIIiagesdtorPartie3:Determinatione1.ectrographiquedeIaporositeReferencenum
2、berISO45243:2021(E)COPYRIGHTPROTECTEDDOCUMENTISO2021IUirhM*hedbdi1.iUedotherwiseupdhi.orbmtndH0tf1.ttoni(nc4nmpe*MqnrtiatfifiHipB1.andonnet8CH-1214Vernier,GenevaPhone：M1.227490111觥曲ite：图洲跳触OQrgPub1.ishedinSwitzer1.andContentsPageforewordiv2 Scope13 Normativereferences14 Termsanddefinitions1Nioximepa
3、pertest14.1 App1.icabi1.ity14.2 Materia1.s14.2.2 Neroirabpaper4.2.3 Moistenedb1.ottingpaper11c4.?Procedure2Dve-transfernanertest125.1App1.icabi1.ity25.2Materia1.s2S.2.2DvMrahsferpaperS3Pmfpdure26Dye-transferpapertest237EIectiaO?ranhicPe1.atinefi1.mtest37.17.2Princip1.e,337.2.2GWotin,tcso1.ution7.2.3
4、Dimethy1.g1.yoxime,indicatorso1.ution47.3Testingso1.ution4解鼬腮7.5.1E1.ectro1.yticprocess.4448_:TreStreport5ForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsttiugh(ISOtnnhnfaaibif1.4mj11fRvcekWpfff1.ptafigbodyhitttCTOtif1.KiaiibtanddittetfaoWh叫Imit
5、teehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofThe
6、proceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenanceare0f1.S01.EC(VifY1的M51btheeditoria1.ru1.esoftheISO/IECDirectives.Part2(secwww.iso.org/direc1.ives).Anytradeusedinthis时歌Onrightsd般掂棚1n隔嗯出捅算鲫MSi曲箫中用Rw嘏利邠出doc啼岫砧临I国isubjectofanypatentrightsidentifiedduringthedeve1.opmerUW4iewm
7、wVw1.1.beintheIntroductionand/orontheISO1.istofpatentdec1.arationsreceived(seewww.iso.org/patents).constitutenameendorsement,documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand耀S三嗨鹦滁船Sss三黜哪嫖也崛叫喊M帆豳幡anMeta1.1.ic
8、andotherinorganicU明泉加OrRan俱feg悯O1.ass忠Eif1.S皿窿inwJ憎i观SnBa吊2/Mdead焦PAtreS地ww.isO.orgisoforewordhtmI.coatings,inaccordancewiththeAgreementontechnica1.cooperationbetweenISOandCEN(ViennaAgreement).Thissecondeditioncance1.sandrep1.acesthefirstedition(ISO4524-3:1985),whichhasbeentechnica1.1.yrevised.加中怜浒曲
9、a118mdh中arc的由口诩岫汕!西m111hS硼阚tqwscri蚓忖康mSurr即电嬲!曲初KteQQw11ftionsonhasbeende1.eted.A1.istofa1.1.partsintheISO4524seriescanhefoundontheISOwebsite.AnyfeedbackorquestionsonIhiSdocumentSh4heMMnatkna1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundatwww.iso.org/members.htm1.Meta1.1.iccoatingsTestmet
10、hodsfore1.ectrodepositedgo1.dandgo1.da1.1.oycoatings一ffographictestsforporosity1ScopeThisdocumentspecifiesfoure1.ectrographictestsforassessingtheporosityofe1.ectrodepositedgo1.d2ndMoWratotjvttreifetfoncesengineering,anddecorativeandprotectivepurposes.?hercTermsands/WWWTeGFgebpIECE1.ectropedia:avai1.
11、ab1.eathttps:/www.e1.ectiopedia.org/4Nioxiniepapertest4.1 /App1.icabi1.ityThismethodissuitab1.efortheexaminationofgo1.dcoatingsonundercoatsOfnicke1.ortin-nicke1.a1.1.oy.4.2 Materia1.s4.2.1 Genera1.Duringthetestruseon1.yreagentsofrecognizedana1.ytica1.gradeandon1.ydisti1.1.edwaterorwaterofequiva1.ent
12、purity.4.2.2 NioxiinepaperSoakfi1.terordup1.icatingpaperfor10rnininan8g/1so1.utionOfnioxime(cyc1.ohcxan-1,2-dioncdioxime).Removetheexcessso1.utionbyb1.ottingandhangthepaperuptodry.4.2.3 Moistenedb1.ottingpaperSoakagoodqua1.itywhiteb1.ottingpaperinwateranddryittoadegreethatconsistent1.yproducessharp1
13、ydefinede1.ectrograms.4.3 Procedure1.ight1.ybrushthee1.ectrop1.atedcoatingtoremove1.oosedustanddebris,thendegeaseitin1,1,1-Irich1.oroethanevapourorothersuitab1.eso1.ventMoistenapieceofthenioximepaper(4.2.2)withwater.Removeexcesswaterbyb1.otting.P1.acethetreatednioximepaperonthee1.ectrop1.atedspecim
14、en(whichactsastheanode).OntheotherfaceofStaiRIorPQ1.三崛e隈piaMnth岛都由斑陆崛&研如嵬曲眦触heassd1.i曲和曲普第anpressurebetweenthenioximepaperandthespecimenisuniformandbetween1.4MPaand1,7MPa.Whi1.eundercompression,passasmoothripp1.e-freed.c.currentfromasourcenotexceeding12V.Setthecurrentdensityinitia1.1.yat7,5mAcm2ofth
15、eanodeareaandpassfor30s.Exposethee1.ectrogramproducedonthenioximepapertoammoniavapourandthena1.1.owtodry.Thepresenceofanydefectinthee1.ectrop1.atedcoatingisrevea1.edbyacorrespondingpinkstainonthepaper.stains.Whene1.ectrop1.atedoncopper,defectsinthenicke1.ortinnicke1.undercoatarerevea1.edasgreen5Dye-
16、transferpapertest15.1 App1.icabi1.ityThismethodissuitab1.efortheexaminationofgo1.dcoatingsoncopper.5.2 Materia1.s5.2.1 Genera1.Duringthetest,un1.essOthenvisestated,useon1.yreagentsofrecognizedana1.ytica1.gradeandon1.ydisti1.1.edwaterorwaterofequiva1.entpurity.5.2.2 Dye-transferpaperSoakapieceofdye-t
17、ransferpaperfor30mininafresh1.ypreparedso1.utioncontaining0,01mo1./1ofsodiumch1.oride(Wai)(ifigso(1.jUi11aQt11iwAfe(t,tB11aUextisBvingsttfi)0i,ithb1.ottingpaper.R(EF期PMqMRfi%出而树4战帝fr唳her俘梆YgftMcoatingwithasoftbrushandthendegreaseitinP1.aceapieceofthedampdye-transferpaper(5.2.2)emu1.sionsidedownonthe
18、e1.ectrop1.atedspecimenfSM氾8。柩盼thode,1.f1.f1.fi加essfo1.1.1.SedassemM弗济科杂酬Rh牖HfSmbetW%Sty肺essdynsferp1.atenpaB赳WhiChthespecimenisuniformandbetween1,4MPaand1,7MPa.Whi1.eundercompression,app1.yafixedpotentia1.of4Vd.c.for30s.Removethedyetansferpaperanddeve1.opitinasaturatedethano1.ic网M;Ofirt1.ft(If1.油妇才
19、在$怙、渊”。岫展(金晚25gofdith100xamidein100m1.ofethano1.bygent1.eWashthee1.ectrogramproducedinco1.drunningwateranda1.1.owtodry.Thepresenceofanydefectinthep1.atedcoatingisrevea1.edbyacorrespondingdarko1.ive-greenstainonthepaper.Itisessentia1.thatthetestpapersproducedincarryingoutthetestberinsedinhotWatCrandc
20、arefu1.1.ydried,oncomp1.etionofthetests.producepersistenttweezersforimmersingthepaperinthedi1.h100xamidcso1.utionbecauseitcan阐般easi1.yctact(kdescribedin-Ctete-5aremoresensitivethanthosegivenin-ntia1.cUm0taohtitstpersproducedincarryingoutthetestberinsedinhotwaterandcarefu1.1.yThetestsdescribedinC1.au
21、se4donotca1.1.forane1.ectro1.ytetobeusedandre1.yonionsfromthersp献2琳嘛抨PK岛孙强盛CtroIy感沾附阳畋f11e就翩P搬壮装8娥初的ausethetest0,1moi/1.so1.utionofsodiumnitrate(NaN03).NOTE1Thedye-transferpapertest2isana1.ternativetothetestdescribedinC1.ause4.NOTE2ThetestsdescribedinC1.ause6aremoresensitivethanthosegiveninC1.ause4,
22、i.e.microporosityrismoreeasi1.ydetected.7 Eiectrographicge1.atinefi1.mtest7.1 Princip1.eThedeterminationoftheporosityofdifferentmeta1.coatingsondifferentbasismeta1.sorintermediateoxtt1.1.ung1.ayerssbbiedndir.WicMshdtro皿hrqnrbitUdthGMdOdUCts.Themethodmaybeconsideredasavariantofe1.ectrographywhichusua
23、1.1.yiscarriedoutWiththe制猛agB就硼摇瓜利愧呢1.聊V龈Ufes,d腑蜘鼬OUr勰联网幽描,sp*HU三糕POreStothesameextent.7.2 ReagentsDuringthetest,un1.essOtherwiSestated,useon1.yreagentsofrecognizedana1.ytica1.gradeandon1.ydisti1.1.edwaterorwaterofequiva1.entpurity.7.2.1 Ge1.atinePreparea10%(massfraction)so1.utionofge1.atineat60with
24、carefu1.stirringtoensurethatnoairenterstheso1.ution.Storethege1.atineso1.utioninaco1.dp1.ace.7.2.2 E1.ectro1.yteso1.utionPreparebymixing20m1.ofammoniaso1.ution(P=0.88grn1.)with80m1.ofwater.7.2.3 Dimethy1.g1.yoxime,indicatorso1.utionPrepareasaturatedso1.utionofdimcthy1.g1.yoxirneinethano1.7.3 Testing
25、so1.utionAdd.whi1.ststirring,35m1.ofthee1.ectro1.yteso1.ution(7.2.2)and20m1.oftheindicatorso1.ution(7.2.3)ge1.atine27totakingair.Pourthemixtureintoe1.ectro1.ysisvesse1.and1.ea底SCOOiNt)ivraturcOsMH3g1.Wcvcr*uaf11ttio6sri!ihhcquati1.wtthisgnhtinmeIixmcataudhtc11frbrcbccndptefitndicatcd.Theso1.utionret
26、ains,onremova1.fromtheso1.ution,acoating1-mmthick.7.4 Apparatus7.4.1Water-bath,fittedwithathermostatforindirecttemperaturecontro1.ofthetestso1.ution.7.4.2 Stirringdevice.7.4.3Innertank,fore1.ectro1.ysisinthetestso1.ution.Thetanksha1.1.bemadeofg1.assoracid-proofstee1.Thee1.ectrodes(cathodes)sha1.1.be
27、madeofp1.atinumptaft1.ngoaBdhautfIuurteohewfBe1.aroiindtha1.bpar1.isohato1.DXted(tkessdc).TheChrhirddfii1.1.athbeebetweentheanodeandeachofthecathodessha1.1.beapproximate1.y50mm.7.4.4 Rectifier.7.5 Procedure7.5.1 E1.ectro1.yticprocessImmersethesamp1.einthetestingso1.ution(7.3)betweenthee1.ectrodes.Pa
28、rtsofthesamp1.ewhichPnrtSIMCba【edobj岫UIhiggtahEfchaHbtaifcnWKHedbeforethedipping.A1.ternative1.y,immerseon1.ytheConnectthesamp1.easanode.Carryoutthee1.ectro1.ysisfor20satacurrentdensityof1,0n1Acm2.7.5.2 DryingWhenthesamp1.ehasbeenremovedfromthee1.ectro1.yte,1.eavethege1.atinecoatingtodryatroomtmnper
29、WttmfbHiwutMiferature.arhitmp1.y,draU1.eratddy(abtinbiicaiod)UDfposition.about15minin7.5.3Eva1.uationExaminethesurfaceforpores.Poresinthecoatingappearasco1.ouredspots,oftenhavingastrong1.ymarkedcentrepointofadiameterof0.2mm.Theco1.ourofthespotsdependsuponcitherthesubstrateortheUnderCOa1.orboth,uponw
30、hichthego1.dorgo1.da1.1.oycoatinghasbeenapp1.ied;itcanberedwithdarkredcentrespotsonnicke1.sorgreenwithdarkgreencentrespotsoncopperorcoppera1.1.oys.NWTFrifcopperorcoppera1.1.oys,greenspotswithdarkgreenpoints7.6 Expressionofresu1.tsExpresstheporosityasxpores/cmz.8 TestreportThetestreportsha1.1.inc1.ud
31、eat1.eastthefo1.1.owinginformation:a) thesamp1.e;b) areferencetothisdocument,inc1.udingitsyearofpub1.ication(i.e.ISO4524-3:2021)；C)anidentificationofthespecificmethodused；d) theresu1.t(三)ofthetest(三)carriedoutandtheforminwhichtheseareexpressed;e) anyunusua1.featuresnoticedduringthedetermination;f) anyoperationnotinc1.udedinthisdocument;g) anyotherre1.evantinformationrequestedbythepurchaser;h) thedateofthetestICS25.220.40
