1、BRITISH STANDARD BS EN 10288:2002 Steel tubes and fittings for onshore and offshore pipelines External two layer extruded polyethylene based coatings The European Standard EN 10288:2002 has the status of a British Standard ICS 23.040.10; 23.040.40; 25.220.60 NO COPYING WITHOUT BSI PERMISSION EXCEPT
2、AS PERMITTED BY COPYRIGHT LAWBS EN 10288:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 10 May 2002 BSI 10 May 2002 ISBN 0 580 39686 X Na
3、tional foreword This British Standard is the official English language version of EN 10288:2002. The UK participation in its preparation was entrusted to Technical Committee ISE/16, Protective coatings and linings of metal pipes and fittings, which has the responsibility to: A list of organizations
4、represented on this committee 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 Standards Catalogue under the section entitled “International Standards Corres
5、pondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not
6、 of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulg
7、ate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 48, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publicati
8、on Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN10288 April2002 ICS23.040.10;23.040.40;25.220.60 Englishversion Steeltubesandfittingsforonshoreandoffshorepipelines Externaltwolayerextrudedpolyethylenebasedcoatings Tubesetraccordsenacierpourcanalisationsenterreset immergesRe
9、vtementsexternesdoublecouchebase depolythylneextrud StahlrohreundFormstckefrerdundwasserverlegte RohrleitungenImZweischichtVerfahrenextrudierte Polyethylenbeschichtungen ThisEuropeanStandardwasapprovedbyCENon26December2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulat
10、etheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,Ge
11、rman).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Irelan
12、d,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2002CEN Allrightsofexploitationinanyformandbyanymeansreserved worl
13、dwideforCENnationalMembers. Ref.No.EN10288:2002EEN10288:2002(E) 2 Contents page Foreword4 1 Scope 5 2 Normativereferences 5 3 Terms,definitionsandsymbols .6 3.1 Termsanddefinitions. .6 3.2 Symbols 6 4 Classificationofcoatings .6 5 Informationtobesuppliedbythepurchaser. .6 5.1 Mandatory.6 5.2 Options
14、tobeindicatedbythepurchaser .7 6 Documents7 7 Applicationofthecoating .7 7.1 Surfacepreparation . 7 7.2 Compositionofthecoating 8 8 Requirementsoftheappliedcoating. 8 8.1 General8 8.2 Appearanceandcontinuity. 9 8.3 Thicknessofthecoatingsystem . 9 8.4 Cutbackattheends 11 8.5 Holidaydetection . 11 8.6
15、 Impactresistance. 11 8.7 Peelforce 12 8.8 Indentationresistance .12 8.9 Electricalinsulationresistance 13 8.10 Elongationatbreak 13 8.11 Resistancetoultravioletirradiation .13 8.12 Thermalstability .13 8.13 Cathodicdisbondment . .15 8.14 Flexibility.15 9 Inspection .15 9.1 Document15 9.2 Sampling.1
16、6 9.3 Natureandfrequencyoftestingandcontrol. .16 9.4 Retests 18 10 Repairs18 11 Marking .18 12 Handling,transportationandstorage. .19 12.1 Handling19 12.2 Transportationtothestoragearea . .19 12.3 Storage19 12.4 Loadingoftubesandcomponentsfordelivery. .19 AnnexA (normative) Inspectionofthickness 20
17、A.1 General20 A.2 Apparatus .20 A.3 Procedure .20 A.4 Results 20EN10288:2002(E) 3 AnnexB (normative) Holidaydetectiontest 21 B.1 General21 B.2 Apparatus .21 B.3 Procedure .21 B.4 Results 21 AnnexC (normative) Impacttest . .22 C.1 General22 C.2 Apparatus .22 C.3 Procedure .22 C.4 Results 23 AnnexD (n
18、ormative) Peelforcetest . .24 D.1 Measurementofthepeelingforceonacoatedsample(type1)24 D.2 Measurementofthepeelstrengthonlargediametertube(type2) .25 AnnexE (normative) Indentationtest 30 E.1 General30 E.2 Apparatus .30 E.3 Procedure .30 E.4 Results 30 AnnexF (normative) Specificelectricalinsulation
19、resistancetest 31 F.1 General31 F.2 Apparatus .31 F.3 Procedure .31 F.4 Results 31 AnnexG (normative) Elongationatbreaktest 35 G.1 General35 G.2 Apparatus .35 G.3 Sampling.35 G.4 Procedure .35 G.5 Results 36 AnnexH (normative) Ultravioletirradiationandthermalstabilitytests.37 H.1 Resistancetoultravi
20、oletirradiation. 37 H.2 Thermalstability . .38 AnnexJ (normative)Cathodicdisbondmenttest 40 J.1 General40 J.2 Apparatus .40 J.3 Sampling.41 J.4. Procedure .42 J.5 Results 42 AnnexK (normative)Typesofinspectiondocuments46 AnnexL (informative)ADeviation .47 Bibliography 48EN10288:2002(E) 4 Foreword Th
21、isdocumentEN10288:2002hasbeenpreparedbyTechnicalCommitteeECISS/TC29“Steeltubesandfittings forsteeltubes“,thesecretariatofwhichisheldbyUNI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2002,andconflictingnational
22、standardsshallbewithdrawnatthelatest byOctober2002. Duringthe6monthsenquiry,itappearedthattwotestswereomitted: longtermperformance; stress cracking. Afterdiscussions,theconclusionswerethattherewasinsufficientdataforstandardizationoftestconditionsand requiredproperties. ECISS/TC29/SC4agreedtoleavethe
23、standardsastheyareandtocreateanAdHocGrouptostudythese problemsinordertobeabletointroducethesetestsinthe5yearsrevision. TheannexesA,B,C,D,E,F,G,H,JandKarenormative. TheannexLisinformative. ThisstandardincludesaBibliography. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganization
24、softhefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain, Sweden,SwitzerlandandtheUnitedKingdom.EN10288:2002(E) 5 1Scope ThisEuropeanStandarddefinesth
25、eapplicationoffactoryappliedexternaltwolayerextrudedpolyethylenebased coatingsforthecorrosionprotectionoftubesandpipelinecomponents. Externalextrudedpolyethylenecoatingcanbeusedfortheprotectionofburiedorsubmergedtubesserviceat temperaturesupto+60Cfortype1and+30Cfortype2. Thecoatingsinthisstandardcan
26、beappliedtolongitudinallyorspirallyweldedandtoseamlesssteeltubesand componentsusedfortheconstructionofpipelinesforconveyingliquidsorgases. Tubescoatedwiththistypeofcoatingmaybefurtherprotectedbymeansofcathodicprotection. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference
27、,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentsorrevision.Forundatedref
28、erences,thelatesteditionofthe publicationreferredtoapplies(includingamendments). prEN10224,Steeltubesandsteelfittingsfortheconveyanceofaqueousliquidsincludingwaterforhuman consumptionTechnicaldeliveryconditions. ISO5272:1993, PlasticsDeterminationoftensilepropertiesPart2:Testconditionsformouldingand
29、extrusion plastics. ISO1133,PlasticsDeterminationofthemeltmassflowrate(MFR)andthemeltvolumeflowrate(MVR)of thermoplastics. ISO1183, PlasticsMethodsfordeterminingthedensityandrelativedensityofnoncellularplastics. ISO4287,GeometricalProductSpecification(GPS)Surfacetexture:ProfilemethodTerms,definition
30、sand surfacetextureparameters. ISO48922:1994, PlasticsMethodsofexposuretolaboratorylightsourcesPart2:Xenonarcsources. ISO85011, PreparationofsteelsubstratesbeforeapplicationofpaintsandrelatedproductsVisualassessment ofsurfacecleanlinessPart1:Rustgradesandpreparationgradesofuncoatedsteelsubstratesand
31、ofsteel substratesafteroverallremovalofpreviouscoatings. ISO11420, Methodfortheassessmentofthedegreeofcarbonblackdispersioninpolyolefinpipes,fittingsand compounds.EN10288:2002(E) 6 3 Terms,definitionsandsymbols 3.1 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefiniti
32、onsapply. 3.1.1 productmanufacturer supplierofthecoatingmaterialinaconditionsuitableforapplicationtotheproducttocoat 3.1.2 coater personresponsibleforapplyingthecoatingmaterialtothecomponentstocoatinaccordancewiththeprovisionsof thisEuropeanStandardorthespecialrequirementsgiveninthetenderspecificati
33、onandintheorder 3.1.3 purchaser companywhichbuysthecoatedproducts 3.2Symbols R z roughnessparameter(theaverageroughnessfromfivesuccessiveevaluationareasmeasuredaccordingto ISO4287); R s specificelectricalinsulationresistance,expressedinohms.squaremetres( m); k correctionfactor. 4 Classificationofcoa
34、tings Thecoatingshallconsistoftwolayers:anadhesiveandanextrudedpolyethyleneoutersheath.Thetype1 adhesivecaneitherbeappliedasapowderorbyextrusion,thetype2adhesiveisappliedbyfloodcoating. 5 Informationtobesuppliedbythepurchaser 5.1Mandatory Thepurchasershallstateinhisenquiryandorderthefollowingminimum
35、information: tubesandcomponentscoatedinaccordancewiththisEuropeanStandardshallbedesignatedbyreferenceto thisstandardfollowedbythethicknessclassofthecoating,thetypeandthecategoryfortype1.Ifapplicable, thereferencetothestandardforthetubetowhichthecoatingisappliedshallbeaddedtothisdesignation; EXAMPLE:
36、5000moftubeEN10224of406,44,0 externalcoatingEN10288Class1,Type1,categoryA; maximumnumberanddimensionsofrepairs; maximumservicetemperature.EN10288:2002(E) 7 5.2 Optionstobeindicatedbythepurchaser definitionofsurfacepreparation(seeTable8); cutbackattheends(seeTable8); electricalinsulationresistance(se
37、eTable8); resistancetoultravioletirradiation(seeTable8); thermalstability(seeTable8); cathodicdisbondment(seeTable8); flexibility(seeTable8); schemeofprocedurequalification; typeofinspectiondocumentrequired,ifdifferenttotheoneofclause9; colourofthetopcoat. 6Documents See9.1. 7 Applicationofthecoatin
38、g 7.1Surface preparation Twokindsofsurfacepreparationcanbeappliedaccordingtothetypeofcoating. 7.1.1 Type1 7.1.1.1Thetubeandcomponentsshallbeabrasiveblastcleaned.ThedegreeofcleanlinessshallbeSa21/2in accordancewithISO85011. 7.1.1.2Priortoabrasiveblastcleaning,thesteelsurfaceshallbedryandfreefromconta
39、mination(oil,grease, temporarycorrosionprotection,etc.)andsurfacedefects(slivers,laminations,etc.)detrimentaltothesurface preparationortotheadhesionofthecoating. 7.1.1.3Afterblastcleaning,thesurfaceofthetubeshallbeinspected.Allslivers,laminations,weldspatterand othersurfaceimperfectionsmadevisibleby
40、theblastcleaningprocessshallberemoved. Afterremovalofthesedefects,theresidualthicknessoftubeandcomponentsshallsatisfytheminimumtolerance requirementsspecifiedbytherelevantstandard.Alltreatedareasgreaterthan10cm shallbepreparedtoprovide aprofiletosatisfytheprovisionsof7.1. 7.1.1.4Tubeandcomponentssha
41、llbemaintainedatleast3Cabovethedewpointtemperaturepriortocoating. 7.1.1.5Contaminants(e.g.residualabrasivedust)shallberemovedpriortocoating. Chemicaltreatmentofthesteelmaybeusedinadditiontoabrasiveblastcleaning,byagreement. 7.1.1.6Atthetimeofapplication,thetemperaturerangeatthesurfaceofthetubetobeco
42、atedshallbedetermined inagreementwiththemanufacturersoftheproducts.EN10288:2002(E) 8 Thetemperatureholdingtimeofthetubeshallnotresultinoxidationofitssurface,detrimentaltothegoodquality andadhesionofthecoating. Thetemperatureofthetubeshallbemonitoredusingsuitablemeansinordertomakesurethattheapplicati
43、on conditionsarefullysatisfied. 7.1.2 Type2 Thismethodmayonlybeusedfortype2coatings.Whereatype2systemisspecified,achemicalcleaningand passivationprocessmaybeusedasanalternativetoblastcleaning. 7.2 Compositionofthecoating Thecoatingshallconsistoftwolayersandshallbeappliedinthefactoryinaccordancewitht
44、heestablished procedure. TheconstituentmaterialdatasheetsshallcontaintheitemsrequiredinTable1. 7.2.1Layer 1 7.2.1.1 Type1 Thelayershallbeformedbyapolymerintendedtoprovideadhesionbetweenthesteelsubstrateandlayer2.Its thicknessshallbeuniformanditsminimumvalueshallmakeitpossibletosatisfytherequirementsofclause8. 7.2.1.2 Type2 Thelayershallbeformedbyamasticadhesivecha
