1、BRITISH STANDARD BS EN 13523-6:2002 Coil coated metals Test methods Part 6: Adhesion after indentation (cupping test) The European Standard EN 13523-6:2002 has the status of a British Standard ICS 17.040.20; 25.220.60 BS EN 13523-6:2002 This British Standard, having been prepared under the direction
2、 of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 8 August 2002 BSI 8 August 2002 ISBN 0 580 40222 3 National foreword This British Standard is the official English language version of EN 13523-6:
3、2002. The UK participation in its preparation was entrusted to Technical Committee STI/27, Paint systems for metallic substrates, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards
4、 which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This pub
5、lication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible internati
6、onal/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title
7、 page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN135236 July2002 ICS17.040.20;25.220.60 Englishversion Coilco
8、atedmetalsTestmethodsPart6:Adhesionafter indentation(cuppingtest) TlesprlaquesMthodesdessaiPartie6:Adhrence aprsindentation(essaidemboutissage) BandbeschichteteMetallePrfverfahrenTeil6: HaftfestigkeitnachEindrcken(Tiefungsprfung) ThisEuropeanStandardwasapprovedbyCENon11April2002. CENmembersareboundt
9、ocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEurope
10、anStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepub
11、lic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN A
12、llrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN135236:2002EEN135236:2002(E) 2 Foreword ThisdocumentEN135236:2002hasbeenpreparedbyTechnicalCommitteeCEN/TC139“Paintsandvarnishes“, thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatus
13、ofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJanuary2003,andconflictingnationalstandardsshallbewithdrawnatthelatest byJanuary2003. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEur
14、opeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom. 1Scope ThisPartofEN13523definestermsoftheprocedurefordeterminingtheadhesionofanorganiccoatingtoa metalli
15、csubstrateafterindentationafterslowdeformation. Theresistancetocrackingcanalsobeevaluated. 2 Normativereferences ThisEuropeanStandardincorporates,bydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhere
16、after.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN135230:2001, CoilcoatedmetalsTestmethodsPart0:Ge
17、neralintroductionandlistoftestmethods. EN23270:1991, PaintsandvarnishesandtheirrawmaterialsTemperaturesandhumiditiesforconditioningand testing(ISO3270:1984). ENISO1520:2001, PaintsandvarnishesCuppingtest(ISO1520:1999). IEC604542:1994, Specificationforpressuresensitiveadhesivetapesforelectricalpurpos
18、esPart2:Methodsof test. 3 Termsanddefinitions ForthepurposesofthisPartofEN13523,thetermsanddefinitionsgiveninEN135230:2001apply. 4Principle Thetestspecimeniscrosshatchedwithacuttingtoolandisthendeformedbypressingunderspecifiedconditions. Afterpressing,thetestspecimencanbeartificiallyagedbyimmersioni
19、nboilingwater.EN135236:2002(E) 3 5 Apparatusandmaterials 5.1Crosshatchingdevice Asinglebladedknife,verysharptoavoidanyburrs.Forcoatingslessthan60minthickness,itisalsopossibleto useapurposemadecuttingtool,capableofmakingaminimumof6parallelcuts. 5.2Pressingdevice ApparatusinaccordancewithENISO1520:200
20、1,consistingessentiallyof: a) asteeldie,ofinsidediameter(27 0,05)mm,itscontactsurfacewiththetestspecimenbeingflatand polished; b) aretainerring,havingitsflatandpolishedsurfaceincontactwiththetestspecimen; c) astrikerconsistingofapolishedsteelsphere,ofdiameter(20 0,05) mmwithamaximumof0,1mm displacem
21、entfromtheaxisofthedie; d) asystem,preferablyhydraulic,allowingmovementofthestrikerataspeedof(126)mm/min. 5.3Ageingdevice Theageingdeviceshallconsistof: a) avessel,tocontainboilingwater,whosedimensionsallowthecompleteimmersionofthetestspecimen; b)a heating system. 5.4Pincers, thejawsofwhichshallbefl
22、at,bluntandhavingawidthofatleast5mm. 5.5Magnifyingglass 10. 5.6 Transparentpressuresensitiveadhesivetape, 25mmwide,withanadhesionstrengthof (101)Nper25mmwidthwhentestedinaccordancewithIEC604542:1994. 6Sampling SeeEN135230:2001. 7 Testpanels SeeEN135230:2001. 8Procedure 8.1Ambient conditions Measuret
23、hecoatingadhesionatambienttemperature.Formoreaccuratemeasurements,asrequiredforinstance incaseofdispute,thetemperatureshallbe(232)Candtherelativehumidity(505)%,inaccordancewith EN23270:1991.EN135236:2002(E) 4 8.2Crosshatching(notusedforevaluationofresistancetocracking) 8.2.1Forcoatingsgreaterthanore
24、qualto60mthickness (seeFigure1) Maketwoparallelcuts5mmapart,togetherwithtwoadditionalsimilarcutsatrightanglestoformacentral 5mm 5mmsquare. Eachcutshalljustreachthemetallicsubstrate,andeachcutshallmeasureatleast50mminlength. Eachcutshallbeatadistanceofnotlessthan20mmfromtheedgeofthetestpanel. 8.2.2Fo
25、rcoatingslessthan60mthickness (seeFigure2) Makeatleastsixparallelcuts1mmapart,togetherwithatleastsixadditionalsimilarcutsatrightangles. Eachcutshalljustreachthemetallicsubstrate,andeachcutshallmeasureatleast50mminlength. Eachcutshallbeatadistanceofnotlessthan20mmfromtheedgeofthetestpanel. NOTE Atthi
26、sstagenoneofthesquaresformedexhibitadhesionfailurefromthemetallicsubstrate. 8.3Pressing Chooseanindentationdepthinmillimetres,forexample80%ofthedepthwhichrupturesthemetallicsubstrate. Clampthetestpanelbetweentheretainerringandthedie,thecoatingfacingthedieandtheendofthestriker beingincontactwiththete
27、stpanel.Themeasuringdeviceshallbeinposition0.Ensurethatthecrosshatching shallbecentredonthedome. Movethesphericalendofthestrikeratconstantspeedof(12 6) mm/mintoreachthechosendepthof indentation. 8.4 Ageing (optionalandonlyforcoatingsgreaterthanorequalto60mthickness) Immersethetestpanelinboilingwater
28、foratleast1h. Ifrequired,thetestcanberunforlongerperiodsoftime. Generally,ageingshallbecarriedoutafterthedeformationbutinsomecasesitmaybeperformedbefore. 8.5 Assessmentofadhesion 8.5.1 Forcoatingsgreaterthanorequalto60mthickness Makeanattempttopullthestripsoftheorganiccoatingawayfromthemetallicsubst
29、rateineachofthefour directions,startingfromthecentralsquare.Lifttheendofthestripswiththeknife(5.1),thenpullwiththepincers (5.4)untiltheruptureofthestrip. Observetheextentofthepeelingandexpressinpercentageofthedistancebetweenthetopandthebaseofthe dome. Ifageingiscarriedout,expresstheadhesionasapercen
30、tageofpeelingfortheageingperiod. 8.5.2 Forcoatingslessthan60mthickness Removetwocompletelapsfromareeloftheadhesivetape(5.6)anddiscard.Removeanadditionallengthata steadyrateandcutapiece,approximately75mmlong.EN135236:2002(E) 5 Placethecentreofthetapeoverthelatticeinadirectionparalleltoonesetofthecuts
31、andsmooththetapeinto placeovertheareaofthelatticeandforadistanceofatleast20mmbeyond. Toensuregoodcontactwiththecoating,rubthetapefirmlywithafingertip.Thecolourofthecoatingseenthrough thetapeisausefulindicationofoverallcontact. Within1minofapplyingthetape,removethetapebyholdingthefreeendandpullingito
32、ffsteadilyin0,5sto1s atananglethatisascloseaspossibleto60tothepanel.Assessthedegreeofadhesionafterremovalofthe adhesivetape. Retainthetapeforreferencepurposes,forexamplebyattachingittoasheetoftransparentfilm. 8.6 Assessmentofcracking (optional) Assessthedegreeofcrackingonthedomeofdeformationwiththe
33、10magnifyingglass(5.5). Ifcrackingisobserved,theindentationdepthshallbereducedandthetestrepeateduntilnocrackingisobserved. 9 Expressionofresults 9.1 Forcoatingsgreaterthanorequalto60mthickness Expresstheresultsasthepercentageofthedistancebetweenthetopandthebaseofthedomeforpeeling. 9.2 Forcoatingsles
34、sthan60mthickness Expresstheresultsasthepercentageofcrosshatchedsquaresremovedaftertaping. 9.3Cracking Expresstheresultsinmmatwhichnocrackingisobserved. 10Precision NOTE Noprecisiondataarecurrentlyavailable. 11 Testreport Thetestreportshallcontainatleastthefollowinginformation: a) alldetailsnecessar
35、ytoidentifytheproducttested; b) areferencetothisPartofEN13523(EN135236); c)the indentation depth; d) forcoatingsgreaterthanorequalto60mthicknesswhetherornotageinghasbeencarriedoutandwhether theageinghasbeencarriedoutbeforeorafterdeformation; e) theresultsofthetest,asindicatedinclause9; f) anydeviati
36、onfromthetestmethodspecified; g) thedateofthetest.EN135236:2002(E) 6 Dimensionsinmillimetres Figure1Cuttingofcoatings 60mthickness (2cutsineachdirection,5mmapart) Figure2Cuttingofcoatings60mthickness (minimumof6cutsineachdirection,1mmapart)EN135236:2002(E) 7 Bibliography EN1396:1996,Aluminiumandalum
37、iniumalloysCoilcoatedsheetandstripforgeneralapplications Specifications. EN101691:1996,Continuouslyorganiccoated(coilcoated)steelflatproductsPart1:Generalinformation (definitions,materials,tolerances,testmethods). ENV101692:2001, Continuouslyorganiccoated(coilcoated)steelflatproductsPart2:Productsfo
38、rbuilding exteriorapplications. prEN101693:2001, Continuouslyorganiccoated(coilcoated)steelflatproductsPart3:Productsforbuilding interiorapplications. ENISO2409:1994, PaintsandvarnishesCrosscuttest(ISO2409:1992).BS EN 13523-6:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Instit
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