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BS EN ISO 8502-5-2005 Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Measurement of chloride e.pdf

1、BRITISH STANDARD BS EN ISO 8502-5:2004 BS 7079-B5:2004 Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanliness Part 5: Measurement of chloride on steel surfaces prepared for painting (ion detection tube method) The European St

2、andard EN ISO 8502-5:2004 has the status of a British Standard ICS 25.220.10 BS EN ISO 8502-5:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 25 January 2005 BSI 25 January 2005 ISBN 0 580 45314 6 National foreword This British Standard

3、is the official English language version of EN ISO 8502-5:2004. It is identical with ISO 8502-5:1998. The UK participation in its preparation was entrusted to Technical Committee STI/21, Surface preparation of steel, which has the responsibility to: A list of organizations represented on this commit

4、tee can be obtained on request to its secretary. Cross-references The British Standards 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 “Se

5、arch” facility of the BSI Electronic Catalogue or of British Standards Online. This publication 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

6、obligations. aid enquirers to understand the text; present to the responsible international/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. Summ

7、ary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, page ii, pages 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued s

8、ince publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO85025 December2004 ICS25.220.10 Englishversion Preparationofsteelsubstratesbeforeapplicationofpaintsand relatedproductsTestsfortheassessmentofsurface cleanlinessPart5:Measurementofchlorideonsteelsurfaces prepa

9、redforpainting(iondetectiontubemethod)(ISO8502 5:1998) Prparationdessubjectilesdacieravantapplicationde peinturesetdeproduitsassimilsEssaispourapprcier lapropretdunesurfacePartie5:Mesuragedes chloruressurlessurfacesdacierprparespourlamise enpeinture(mthodedutubedtecteurdions)(ISO8502 5:1998) Vorbere

10、itungvonStahloberflchenvordemAuftragenvon BeschichtungsstoffenPrfungenzumBeurteilender OberflchenreinheitTeil5:MessungvonChloridenauf vorbereitentenStahloberflchen(Verfahrenzum lonennachweismirPrfrhrchen)(ISO85035:1998) ThisEuropeanStandardwasapprovedbyCENon21December2004. CENmembersareboundtocomply

11、withtheCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanSta

12、ndardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechR

13、epublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFR

14、NORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO85025:2004:EI NESO 58-20:52( 400E) 2 Foreword The text of ISO 8502-5:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and va

15、rnishes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 8502-5:2004 by Technical Committee CEN/TC 139 “Paints and varnishes“, the secretariat of which is held by DIN. Cette Norme europenne devra recevoir le statut de norme nationale, soit par publicatio

16、n dun texte identique, soit par entrinement, au plus tard en juin 2005, et toutes les normes nationales en contradiction devront tre retires au plus tard en juin 2005. Selon le Rglement Intrieur du CEN/CENELEC, les instituts de normalisation nationaux des pays suivants sont tenus de mettre cette Nor

17、me europenne en application: Allemagne, Autriche, Belgique, Chypre, Danemark, Espagne, Estonie, Finlande, France, Grce, Hongrie, Irlande, Islande, Italie, Luxembourg, Lettonie, Lituanie, Malte, Norvge, Pays-Bas, Pologne, Portugal, Rpublique Tchque, Royaume-Uni, Slovaquie, Slovnie, Sude et Suisse. En

18、dorsement notice The text of ISO 8502-5:1998 has been approved by CEN as EN ISO 8502-5:2004 without any modifications. ENISO85025:2004A Referencenumbe r ISO85025:1998 (E) INTERNATIONAL STANDARD ISO 85025 Firstedition 19980215 Preparationofsteelsubstratesbefore applicationofpaintsandrelated productsT

19、estsfortheassessmentof surfacecleanliness Part5: Measurementofchlorideonsteelsurfaces preparedforpainting(iondetectiontube method) Prparationdessubjectilesdacieravantapplicationdepeinturesetde produitsassimilsEssaispourapprcierlapropretdunesurface Partie5:Mesuragedeschloruressurlessurfacesdacierprpa

20、respourla miseenpeinture(mthodedutubedtecteurdions) ENISO85025:2004)E(8991:52058OSI OSI8991 Allthgirsserevr.deselnUstosiwrehescepfi,deitraponfothsicilbuptayamnoicudorperebturodeziliynanidefoybromrna y .rehsilbupehtmorfgnitirwninoissimreptuohtiw,mliforcimdnagniypocotohpgnidulcni,lacinahcemrocinortcel

21、e,snaem noitazidradnatSrofnoitazinagrOlanoitanretnI 65elatsopesaC 02evneG1121HC dnalreztiwS tenretnI hc.osilartnec 004.X lartnec=s;scosi=o;osi=p;ten004=a;hc=c ii Foreword ISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnational standardsbodies(ISOmemberbodies).Theworkofpre

22、paringInternationalStandardsis normallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedina subjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresented onthatcommittee.Internationalorganizations,governmentalandnongovernmental,in liaisonwithISO,alsotakepartinthework.

23、ISOcollaboratescloselywiththeInternational ElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization. DraftInternationalStandardsadoptedbythetechnicalcommitteesarecirculatedtothe memberbodiesforvoting.PublicationasanInternationalStandardrequiresapprovalbyat least75%ofthememberbodi

24、escastingavote. InternationalStandardISO85025waspreparedbyTechnicalCommitteeISO/TC35, Paints andvarnishes ,SubcommitteeSC12, Preparationofsteelsubstratesbeforeapplicationof paintsandrelatedproducts . ISO8502consistsofthefollowingparts,underthegeneraltitle Preparationofsteel substratesbeforeapplicati

25、onofpaintsandrelatedproductsTestsfortheassessmentof surfacecleanliness: Part1:Fieldtestforsolubleironcorrosionproducts TechnicalReport Part2:Laboratorydeterminationofchlorideoncleanedsurfaces Part3:Assessmentofdustonsteelsurfacespreparedforpainting(pressure sensitivetapemethod) Part4:Guidanceonthees

26、timationoftheprobabilityofcondensationpriortopaint application Part5:Measurementofchlorideonsteelsurfacespreparedforpainting(ion detectiontubemethod) Part6:ExtractionofsolublecontaminantsforanalysisTheBreslemethod Part8:Fieldmethodforrefractometricdeterminationofmoisture Part9:Fieldmethodforthecondu

27、ctometricdeterminationofwatersoluble salts. Part10:Fieldmethodforthetitrimetricdeterminationofchloride Furtherpartsareplanned. ENISO85025:2004LANOITANRETNIDRADNATS OSI )E(8991:52058OSI 1 Preparationofsteelsubstratesbeforeapplicationofpaintsand relatedproductsTestsfortheassessmentofsurfacecleanliness

28、 Part5: Measurementofchlorideonsteelsurfacespreparedforpainting (iondetectiontubemethod) 1Scope ThispartofISO8502describesafieldtestforthemeasurementofchlorideionsusingspecial detectiontubes. Withsuitablesurfacesamplingtechniques,thetestisapplicabletosteelsurfacesbeforeandafter cleaning,aswellastopa

29、intedsurfacesbetweenapplicationsofcoats. NOTEISO85022, Preparationofsteelsubstratesbeforeapplicationofpaintsand relatedproductsTestsfortheassessmentofsurfacecleanlinessPart2:Laboratory determinationofchlorideoncleanedsurfaces, describesalaboratorymethodforthe determinationofchlorideonasurface. 2Norm

30、ativereference Thefollowingstandardcontainsprovisionswhich,throughreferenceinthistext,constitute provisionsofthispartofISO8502.Atthetimeofpublication,theeditionindicatedwasvalid. Allstandardsaresubjecttorevision,andpartiestoagreementsbasedonthispartofISO8502are encouragedtoinvestigatethepossibilityo

31、fapplyingthemostrecenteditionofthestandard indicatedbelow.MembersofIECandISOmaintainregistersofcurrentlyvalidInternational Standards. ISO3696:1987, WaterforanalyticallaboratoryuseSpecificationandtestmethods. 3Principle Aproportionofthewatersolublechloridesonthetestsubstrateisremovedbycontrolled wash

32、ingorimmersioninwater.Thecollectedwashingsareanalysedtodeterminethechloride ionconcentration,whichisindicatedbyacolourchangeinadetectiontubecontainingsilver chromate. ENISO85025:2004)E(8991:52058OSI OSI 2 4Apparatusandmaterials 4.1Water, ofatleastgrade3purityinaccordancewithISO3696. 4.2Chlorideionde

33、tectiontube 4.2.1Design Thedetectiontubeshallcompriseaborosilicateglasstube,140mmto150mminlengthand 2mmto3mminsidediameter,containing5%( m/m)analyticalreagentgradesilverchromate inasilicasandcarrier.Thesilicasandshallhaveaparticlesizerangefrom177 m mto 250 m m.Themixtureofsandandchromateshallberetai

34、nedinthetubebyplugsofcotton woolinbothendsandglasspowdercontrolmaterialbetweenthecarrierandtheplugs.Both endsoftheglasstubeshallbesealedbyfusingtheglass. NOTEIfthetubeisproperlydesigned,thecottonwoolwillnotbeburnt. 4.2.1Calibration Aftermakingabatchoftesttubes,breakoffbothendsofseveralofthemwiththeg

35、lasscutter (4.3)andimmerseoneendofatubeverticallyintoeachofvarioussolutionscontaining differentchlorideionconcentrations.Notethetopofthecolourchangeineachtubeandmark allthetubesinthebatchappropriatelytogiveeachascaleinmg/l. NOTECommercialversionsofthetubesareavailablefordeterminingthechloride concen

36、trationovervariousranges.Asuitabletubeischosenforeachtest. Unuseddetectiontubesshallbestoredinarefrigeratorfornolongerthantwoyears. 4.3Cutter, forcuttingofftheendsofthedetectiontube. 4.4Measuringcylinder, of250mlcapacity. 4.5Beakers, oneof100mlcapacity,twoof250mlcapacity. 4.6Glassstirringrod. 4.7Cot

37、tongauze, chloridefree,measuringapproximately300mmx300mm. 4.8Gloves, madeofplasticorrubber. 4.9Adhesivetape. 4.10Tapemeasure. ENISO85025:2004 OSI )E(8991:52058OSI 3 5Procedure 5.1Washingthetestarea Whilethefollowingtestdescribesaparticularswabbingprocedureforwashingthetestarea, anyofseveralsuitablec

38、ontrolledwashingproceduresavailablemaybeusedifdesired. Duringthewashingprocedure,ensure,bywearingcleanplasticorrubbergloves(4.8),thatthe washwaterisnotaccidentallycontaminated. Beforestartingthewashingprocedure,anareaofthesteelsurfacewhichhasbeenprepared forpaintingshallbeidentifiedbytheinterestedpa

39、rtiesassuitableforthetest.Markoutan actualtestareameasuring0,5mx0,5m,or0,25m 2 intotalarea,theshapedependingonthe sizeandshapeofthesteelsubstrate,usingthetapemeasure(4.10)andadhesivetape(4.9). Pour130mlofwater(4.1)intooneofthe250mlbeakersand20mlintothe100mlbeaker (see4.5).Soakthecottongauze(4.7)inth

40、ewaterinthelargerbeakerandsqueezesomeof thewateroutgentlybyhand.Astheglovesmustbewashedattheveryendofthewashing procedureusingonlyalimitedquantityofwater,usersareadvisedtoholdthegauzewiththe fingertipsonly.Thoroughlyswabthewholeofthetestareawiththegauze.Allowaslittle wateraspossibletodripfromthegauz

41、eortorunoffthetestarea.Removethewaterfromthe surfacewiththegauze,squeezingthewashingsintotheother250mlbeaker.Repeatthe swabbingprocedurefourtimes(i.e.foratotaloffivetimes),changingthedirectionofwiping eachtime. Oncompletionofthefifthswabbingprocedure,placethegauzeinthelargerbeaker.With greatcarerins

42、etheglovefingertipsinthewaterinthesmallbeakerandsubsequentlypourthis rinsewaterintothelargerbeaker.Mixthecontentsofthelargerbeakerbystirringwiththe glassstirringrod(4.6). NOTETheBreslemethodspecifiedinISO85026maybeusedforextractionofthe chlorideincombinationwithanalysisbytheiondetectiontubemethodift

43、hechloride surfacedensitytobedeterminedishigherthan100mg/m 2 (10 m g/cm 2 ). 5.2Determinationofthechlorideconcentrationinthetestsolution Cutbothendsofthedetectiontubewiththecutter(4.3).Immerseoneendoftubeinthetest solution.Holdthetubeverticallywiththeendatornearthebottomofthebeaker.Whenthe solutionreachesthetopplug,readoffthechlorideconcentrationinthetestsolution,inmg/1, fromthescale,asindicatedbyaslightchangeinthecolourwherethechromatehasreacted withthechlorideinthesolution. Ifthesolutionfailstoreachthetopofthetubewithin5min,discardthetube

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