DIN-30672

DEUTSCHENORIlI Docember2000 TaDeandshrinkablematerialsfor the corrosion protectionof buriedor underwaterpipelineswithout cathodicprotection lor useat "C operatinq teinoeratures uo to 50 tcs 23.040.99 DIN 30672 SupersedesDIN30672-'1, September1991edilion. OrganischeUmh0llungen ftir den Korrosionsschutz von in Bodenund WassernverlegtenRohrleilungen f tjr Dauerbetriebstemperaturen bis - Eanderund schrump50'C ohne kalhodischenKorrosionsschutz fendeMaterialien ln keeping with cuftent ptactice in standardspublishedby the lntenational Oryanizationfor Skndatdization (lSO),a comna has been used throughout as the decimal mafter. This standard has beeniointly preparedby DIN DeutschesInstitut fArNomung andDVGWDeutscherVerein desGas-undWassertachese.y. (GermanAssociatonof GasandWaler Engin€ers)and has beenadopted into the DVGWCodesof practiceon gas and waier. Contents 2 Normative.eferences 3 Con.ebts 4 Classification and designation 5 B e o u i r e m e n-t.s-.. - . - . - - . - 2 3 7 Cenificationand qualityassurance Otherrelevant standards.. -. -.. -.. References to DINEN 12068areto the March1999edition. Foreword ; R \ DIN30675-1dealswithcorrosionprotectionfor steelpipelinesusingcoatingsborhwith andwithoutcathodic protection,while DIN30675-2dealswith coatingsfor ductitecast kon pipetines.Both these standards provide for tape and shrinkablsmaterialsconformingto DIN30672.Wheroascoatingsfor buriod and undeMatersteelpipelineswith cathodicprotectionare nowcoveredin DtNEN 12068,the Dresentstandard dealswith coatingsfor steelpipelineswithoutsuch protection_ E P Conlinuedon pages2 to 6. Translationby DIN-Sprachendienst. In case oI dolbt, the German-languageoriginal should b€ consulled as the authoritativetext. ; @ Nopanor$is knsarion6aybe€prcdrcedw rhodrhepiorpsnkson of DtNDfuis net hl'sntutfit Nffiung d v, Beiin Btuth vdks turl. 107?2adin G€rmany, hs lhe excLusive &ht of sarelor Gema. sla.dards/o,N'Nmn/. Ref_ No. DtN 30672:2000,12 Eastshpnce srcLpa6 satesNa.o1a6 c) the requiredindentationhardnessfor str€ss classesA and B has been increasedand the residual thicknessis now the samefor all typesof material. accessoriesand their ioints for sewerage applicationRequirements and test methods DINEN969 pipes. fitling. DIN30672:1976-09.filtings.subsequentamendmenlsto or revisionsof anyofthese publicationsapplyto this standarcl only when incorporatedin it by amendmenlor revision.Germanv.ovisionslroftotherpublications. bydatedorundaledrelerence.Basictermsand d€finitions(tSOgO44:1999) DUcw-Geschaftsordnung ttl die nationale Zertifizierung von Produden der cas. 1-3.p. g) melhodsof tes! for delerminingthe resistanceof the subskateto ageingat etevatedtemperatures and the coating'sfreedomlrom poresare no longerincluded. NOTE:Use ol ihis standardfor materialsdesignsdfor s€rvicetemperaturesabove 50. 53123Bonn.strengthtest has been extendedto coveropsralingtemperatures of up to 30 "C.Page2 DIN30672: 2000-'12 This standarddifferskom the September1991edilionof DIN30672-1in that: a) requiremenlsfor thickness. . Ductilekon fittings. d) requirements for impactstrengthare morestringent.Oa 2 Normative references Thisstandard incorporates. e) requirements for peel strengthhavebeenamended.edto applies. 3 DtN2460 DtN28603 Push-injoints in ductileiron pressurepipelines. l) lhe shea. 1 Scope Thisstandardspecifiesrequirements andtest methodsfor coatingsmadefromtapeor shrinkablematerialand for repairpatchesforthe corrosionprotoctionof buriedor undeMatersteelor ductilecast iron pipelinesand intendedtor useat operatingtemperatures of up to 50 "C. 1979-08: DIN30672-1:1991-09. Josef-WirmerStr.und Wassetuersorgung (DVGWrulesof procedurefor the certificationof gas and waterpipeworklr) (DVGW Code of practice) cW Dvcw-Metkblatt t4 Ausbesse/urg von Fehlstelten in Korrosionsschutzumh1llungenvon Rohren und Roh eitungen aus Eisenwe*stoffen {ReDaiinq corrosion protectioncoatings(tapeanclsteeving)onsleel pipes)r) s 1) Obtainablekom W.accessories andtheirjointsfor gaspipetines.accessoriesand theirjointsfor waterpipetines-Requirements andtest methods DINEN598 Ductile jron pipes. andthe tittesofihe pubticationsare tisledbetow_For daledreferences.DINEN545 Ductilekon pipes.Requirements and DINEN 'l2068 € F Extemalorganic coatingsfor lhe corrosionproteclionof buriedor immersedsreelpipetines usedin conjunctionwith cathodicprolection-Tapes and shrinkabtemateflats DINENISO8044 Corrosionof metalsand alloys. withoutadditionalcathodicprolection-Thestandard alsospecifiesrequirements for coatedflexiblesocketjoints. exceptfor petrolatumtapesof stressclassB.Matingdimensionsand mass E DIN30675-1 Externalcorrosionprotectionof buriedpipes-Corrosionprotectionsystemsforsteetpipes R a DIN30675-2 Externalcorrosionprotectionof buriedpipes.C is subject to . Thesenormative reterenc€s arecited at rhe appropdaleplacesin the text.the tatest edirionof the publicationrefer.For undatedreferences. b) the requiredsaponificationnumberhasbeenchanged.Corrosionprotectionsyslemsfor ductiteiron 3 Dioes DIN 50928 Testing andassessment ofcorrosionprolectionofcoatedmetatticmateriatsin contactwith 3 aqueouscorrosivemedia 3 .lensil€strengthand tensilestrainat breakare no longerincluded.rtscraffs-und Verlagsgesellschaft Gas und WassermbH. only th€ thirdcotumnappties.for useal service temoeraturesuo to 50 "C: C o a t i n gD | N 3 0 6 7 2 .2.andshrinkabtemateriatshall be no greaterthan 25 mg KOH per gram of initiatmass.1 Pevolalumtape The use of petrolatumtape is only permittedif it is coveredon on€ side with ptasticfitm.2.B 30 Designation of a coatingconformingto thisstandard.3 Flexiblesocket ioint Jointbetween two pipesor fiitingswilha seal.1 Piping intended for the transportof gaseous. Coatingsas coveredin thisstandardareclassifiedintomechanical classes30 and 50 (cf. (cf.litlings.2 R€pairmaterial material appliedto repairlaultsin coatingson pipes.C 5 0 R a i Designation ofa coatingconformingtothis standard.havingclassB mechanicalresistance.2.1 Classification resislanceclasses.DINEN12068and Inaddition appl.allowing deflection andaxialoffset.2 Furtherreouirements 5. 5.3are fullill€d.havingclassC fiechanicalresistance.thefollowingconcepts 3.e.or heatOneor morelayersof tapeor heatshrinkable patches.1. coatingmaleriatsandbackingottape.2.DIN50928. for useat service temperaturesup to 30 "C (Class30). +-€ontinuous operatingtemperature(i.1 Easic materials I s s * s t 5.the requiremenls s€t out in tables1 and2 ofDlN EN 12068do not applyfor repairmateriatusedin ctose proximityto filler materialusedfor padding. 3.1.fillers. they shall be consideredas complyingwith this slandardif the requiremenlsset out in subclause5.1.2.designated by M. it shatl be resistantto sodiumhydroxide.Thisrequirement shattbeconsideredto befutfi ed if.coatingmaterials.1.The coaringmaterialand backingsha futfitthis requirement independently ofeachother.sasnecessary GW14) 3.backingof corrosionprotectionlape and shrinkabtemateriats Thesaponification numberofprimers. 5.havingctassB mechanicatresisrance.servicetemperalur€) 4..valvesandiointassemblies. f.Page3 DIN30672:2000-12 3 Concepts to thosespecified in DIN2460.tfthe backingof corrosionprotectiontapeand shrinkablemateiatdoesnol futfilthisreqiirementwhentestedas in subclause6.2_1_2.2.thisrequiremenlapptiesforthedry mass.for useat service lemoeraturesuo to 30'C: CoalingDIN30672.DINEN598.DINEN545.2 Primers.and for us€with a flexiblesockoljoint (M): CoatingDIN30672.fillers.3 Corrosionproiectiontaoe and shrinkablematerial lfthe backingoftapeandshrinkablematerialdoesnotfulfiltherequirements setout in subctause5.A.1 Generalrequirements Coalingsshall lulfil the requirementsset out in tables 1 and 2 ot DINEN 12068. andmaximum .lnrhecaseof primers.B 30 M 5 Requirements 5.2 Designation Designation of a coatingconformingto this standard. DINEN 12068).2.lof mechanicalresistanceclassC. DINENISO8044. foltowingconditioning in waterand sodiumhydroxidesolutionat 50 'C for 100days: .DINEN12068andDycltl-Melkblatt activated adhesive usedwithprimersor fille. liquidor solid Systemof pipes.a owing for the fo owing modificalionsto table 1 for coatingswilhoutcathodicprotectlon: .DINEN969. 4 Classitication and designation 4. B andC. NOTE:Thesaponification numberrequirement wittremainvatiduntitthemicrobiatresistancerequirements set out in AnnexM ol DINEN 12068havebeenspecilied. 5. as a percenrage.es.2.AnnexG ol DINEN 12068).2 Fuftherreouirements 6.in newrons.in N/mmwidth: SHro is the tape strengthafterconditioningin water.1.3.the ENaoH/Ero and the SNuoH/Ss2o ratiosare from 0.3.25.in N/mmwidth.omittingthetestlor indentation resistanceusinga high voltagedetector(cf.2. 6 Testing 6.751o1. 5. at least 48 hoursin akat atemperatureof(23t 2)'C befofelestingtheirtapestrength.etongation at breakandbursting strengthas in AnnexA of DINEN12068.2 Coaling 5.oH/Ero Inthecaseoftapeandshrinkable maierialwthoutreinforcemenr.2.1 of DINEN 12068.1 moyl sodiumhydroxidesolution.1 BeDairoatches Whentestedas in subclause6.25N/mmr. 6.2.g In the caseol lape and shrinkablemateialwith reinforc€ment. rheresistanceindexfortape strength.Page4 DIN30672:2000-12 a) whentestingunreinforced lape and shrinkablematerialasin subclause6. shallbe calculatedas follows: QB= BN.es. the resistanceindexforetongationat break.2.whentestedas in subclause6. shatl be calculatedas follows: Q5 = Ss. s 6.3 Furtherrequirements 6. Theshearr€sistanceof repairpatchesmadefromcorrosionprotectiontapesha betestedas in subctauseD.1 Generalrequiremenis Testingshallb€ carri€dout in accordancewithAnnexesA to Q of DIN EN 12068.2.3. b) whentestingreinforcedmaterialasin subclause6. QE.in the aboveequationsl EMoH is the elongationat breakaftercondilioningin sodiumhydroxjdesotution.8.2. in newtons BHro is the burslingstrengthafterconditioningin water.C in distilledor deionizedwaler and in 0.oH is the tape streugthafterconditioningin sodiumhydroxidesotution.3.rinsedwirhdistittedor deionizedwaterandsuspended in distilledor deionizedwaterlor24 hoursat (2312)"C.as a percentage.the lap shearstrengthshallbe at least0.25.the BNaoH/BHroratio is from 0.75to 1.2 SaDonificalionnumber Testingshallbe carriedout as in AnnexL of DINEN 12068- a : a 6. 5.2 Coalingsfor flexiblesockeljoints Coatingslor flexibl€sockel joints shallfulfil the requirementsfor specificelect. The specimenssha thenbe conditionect fo. the resistanceindexfor burstingstrength.2.oH is the burstang strengthafterconditioningin sodiumhydroxidesolutaon.shallbe calculaledas follows: QE= EN.1 Petrolatumtaoe Tapeshallbe inspectedforthe presenceol plaslicfilm on one side.Hot-workablematerialsballbe testedas in subctauseD. : . After70 and 100daysfivespecimensshallberemoved. c) whenlesling as in AnnexA of DINEN 12068.icalinsulationresistance') (classC) as givenin table 1 of DINEN 12068.2of DtNEN 12068.ay which is meantthe resistivity of the coaring. SN.2. ') Iranslatols note.ofr/BHro where. 6.the ralio of valuesdelerminedafter100day exposureto thosedeterminedafter70 day exposureis not lessthan0. BN.preparedas specifiedin AnnexA of DINEN 12068shallbe suspendedfreetyat (501 2) .3. In thecaseoftape and shrinkablemalerialwilhoutreinforcement.1 Shearresisranceof repair patches Testingshallbe caried out at a temperatureof (5012)"C as in AnnexD of DtNEN 12068.3 Resastance to sodium hydroxidesolution Ten specimens.qp/sH.2.2. Errro is the elongationat breakatterconditioningin water. The assemblyshallthen be deflectedby 3' fivetimesin both directionsat a rale of 1' per minute.6elongalion Peelstrength(layerto layer) Peelstrength(coating/pipesurface) lndenlationresistance Tensil€strenglh.elongationat break.3. lnternalcontroltestiflgshallbe carriedout as specifiedin table 1. Table 1: Scope and frequencyottesting [rinimumfrequ€ncyof lesling Bitumentape 3 Synthetictape Onceeverythreemonths Onceeverythreemonths Onceeverythreemonths Oncea day Onceeverythreemonlhs Onceeverythreemonlhs Onceeverythreemonths Oncea day Oncea day Oncea day Onc€everythreemonths Onceeverythreemonths Onceeverylhree months Oncea day Oncea day Oncea day e Shrinkablemal€rial Oncea day Onceeverythreemonths Onceeverythreemonths Oncea day Oncea day i Oncea day Oncea day Propertyto be checked Thickness. solid maltercontentor density Tensilestrength.with the pipe sectionsioined so that they are conductive.The specimensshall be providedwith a coating as specilledby the manufacturerand then condilioned.e. . Third-partyinspectionof cartifiedproducts shall be canied out in accordance wiih the Dycw-Gescheftsotdnung fir die nationale Zeftifizierung von Produktender Gas.1 ol DIN28603 (j.with the ioint in its workingposilion.modulusat 10 % elongation Peelstfength(coating/pipe surface) Shearstrength Othertest melhodsmay be used if they yieldsimilarresults.Page5 DIN30672:2000-12 6.at (23+2)"C for 24 hours. with a socket depth of (115:110)mm).or masspe.or massper unit area lndentalionresistance Drip resistance Thickness. 7.1 Certilication CertificationandmarkingofcorrosionproteclionmaterialwiththeDIN-DVGW-test markshallbeundertakenin accordance with the Dycw-Gescheftsordnung lrr die nationale Zettitizierung von Produkten det Gas.modulusat 10 0.2 Specitic electrical insulationresistanceof coated flexible socket ioints Specimensshallb€ threeioint assembliesof sizeDN 100pipeswith a typeB sockeljoint as in subclause3.uncl WasseNercorgunq. a periodof 100 daysas in AnnexJ of DINEN'12068. At a rateof 10 mm per minute.2. determinelhe specificelectricalinsulationresistanceover After returningthe assemblytoits or:ginalposition.modulusat 10 % elongation Thickness Peelstrengthlayerto layerfortape or peel strength(coating/pipe surface) Shrinkage Indentationres:slance lmpactresislance Shearstrenglh Consistency/viscosity. unit area Peelskength(coating/pipesurface) Indentationresistance Tensileskength. 7 Certitication and quality assurance 7.und Wasse ersorgung.elongationai break.elongationat break. flnally returningthe assemblyto its o ginalposition.pullthe ioint assembly30 mm apartandthen pushthe pipe sectionsback in lo a point 30 mm beyondthe originalposition-Carry out this procedureten times in all.2 Conformity assessment and quality assurance Conform:tyassessment(typelesting)and qualityassuranceshallbe in accordancewith DINEN 12068. fittingsand vessels Polyethylen€ coatingsfor ductil€iron pipes.Requirements and testing Thermosetplasticcoatingsfor buriedsteelpipes Bilum€ncoatingsand llningsforste€lpip€s.Requirem€nts and testing Externalcorrosionprotectionof buied valves.Normaldutylhermosetplasticcoatings Eratsmal corrosionprotectionot buriedvalvss.Hsaw-dulythermosetplasticcoatings Polypropylenscoatingsforsteelpipes Probabilityol corosion of mstallicmaterialswhen subjectto conosionfrom the outside Seruicecomponentsinsidebuildings Probabilityof corrosionof metallicmaterialswhensubiectto corosiontromth€ outside.Buded and undeMatea pipelines and structural components Wat€rsupply.Requir€ments and lesting Cementmortarcoatingsfor ductilekon pipes.Page6 DIN30672:2000-12 Other relevant standards DIN28601 DIN28602 DIN30670 DIN30671 DIN30673 DiN30674-l DIN30674-2 DIN30677-1 DIN30677-2 D|N30678 DIN50929-2 DIN50929-3 v' B a e c € DINEN805 Screw€dsocketjoint assembliesfor gas and waterduclilekon pressurepipelines-Assembly and comPonents Bolted-glandjoint ass€mbliesfor gas andwat€rductlleiron pressurepjpelines-Assemblyand comoonents Polyethylene coatingsfor stsel pipesand litlings.Requirgm€nts for externalsystemsand components . 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