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1、ICS23.020.30CCSJ74OBNationalStandardofthePeoplefSRepublicofChinaGBT42610-2023TestMethodforEvaluatingHydrogenCompatibilityofPlastic1.inerofHighPressureGaseousHydrogenCylindersPromulgatedonXXXXXXXXImDlementedonXXXXXXXXPromulgatedbyGeneralAdministrationofQualitySupervision,InspectionandQuarantineoftheP
2、eoplefsRepublicofChinaStandardizationAdministrationofthePeople,sRepublicofChinaContentsForewordII1 Scope12 NormativeReferences13 Terms,Definitions,andSymbols24 Generalrequirements25 TestConditions36 TestMethods47 TestReport12AnnexA(Informative)BasicStructureofMainBodyofHydrogenPermeationTestDevice14
3、GBZTXXXXX-XXXXForewordThisstandardisdraftedinaccordancewiththerulesgivenintheGB/T1.1-2020DirectivesforStandardization-Part1:RulesfortheStructureandDraftingofStandardizingDocuments.ThisstandardhasbeenredraftedandmodifiedadoptionofinternationalStandardISO11114-5:2022Gascylinders-Compatibilityofcylinde
4、randvalvematerialswithgascontents-Part5:Testmethodsforevaluatingplasticliners.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisstandardmaybethesubjectofpatentrights.Theissuingbodyofthisstandardshallnotbeheldresponsibleforidentifyinganyorallpatentrights.ThisstandardwasproposedandpreparedbyS
5、AT/TC31(NationalTechnicalCommittee31onCylinderofStandardizationAdministrationofChina).SAC/TC31isinchargeofthisEnglishtranslation.IncaseofanydoubtaboutthecontentsofEnglishtranslation,theChineseoriginalshallbeconsideredauthoritative.DraftingunitsofthisDocument:MaindraftersofthisDocument:Itisthefirstre
6、leaseofthisDocument.TestMethodforEvaluatingHydrogenCompatibilityofPlastic1.inerofHighPressureGaseousHydrogenCylinders1 ScopeThisstandardspecifiesthetermsanddefinitions,generalrequirements,testconditions,testmethodsandtestreportsconcerningthehydrogencompatibilitytestfortheplasticlinerofhighpressurega
7、seoushydrogencylinders.Thisstandardisapplicabletotheevaluationonhydrogencompatibilityofplasticlinerforthehighpressuregaseoushydrogencylinderfeaturinganominalworkingpressureofnotmorethan70MPa,astoragemediumofcompressedhydrogen,atesttemperatureofnotlowerthan-40butnothigherthan85.2 NormativeReferencesT
8、hefollowingreferenceddocumentsareindispensablefortheapplicationofthisdocument.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferenceddocument(includinganyamendments)applies.GB/T1033.1PlasticsMethodsforDeterminingtheDensityofNon-celluarPlastics-Part1:Immersi
9、onMethod,1.iquidPyknometerMethodandTitrationMethodGB/T1040.1PlasticsDeterminationofTensilePropertiesPart1:GeneralPrinciplesGB/T1040.2PlasticsDeterminationofTensilePropertiesPart2:TestConditionsforMouldingandExtrusionPlasticsGB/T5163SinteredMetalMaterials,ExcludingHardmetalsPermeableSinteredMetalMate
10、rialsDeterminationofDensity,OilContent,andOpenPorosityGB/T5330.1IndustrialWireScreensandWovenWireClothGuidetotheChoiceofApertureSizeandWireDiameterCombinationsPart1:GeneralitiesGB/T5832.1GasAnalysisDeterminationofMoisturePart1;ElectrolyticMethodGB/T5832.2GasAnalysisDeterminationofMoisturePart2;DewPo
11、intMethodGB/T6285DeterminationofTraceOxygeninGasesElectrochemicalMethodGB/T13005TerminologyofGasCylindersGB/T28726GasAnalysisGasChromatographwithHeliumIonizationDetectorGB/T29729EssentialrequirementsfortheSafetyofHydrogenSystemsGB/T34542.1StorageandTransportationSystemsforGaseousHydrogenPart1:Genera
12、lRequirementsGB/T37244FuelSpecificationforProtonExchangeMembraneFuelCellVehicles一Hydrogen3 Terms,Definitions,andSymbols3.1 TermsanddefinitionsForthepurposesofthisdocument,thetermsanddefinitionsgiveninGB/T13005andthefollowingapply.3.1.1 plasticlinerAninnerplasticshellwhich,incontactwiththegasfilledan
13、dwrappedwithacarbonfiberreinforcementlayeronitsoutersurface,isdesignedforgassealingandnotforpressureloadbearing.3.1.2 seamlesslinerAplasticlinermoldedinonepieceandhavingnosplicedwelds.3.1.3 weldedlinerAplasticlinerwithsplicedwelds.3.1.4 blisterAlocalizedbubble-likedefectinpolymer.3.1.5 nominalworkin
14、gpressure(P)Thelimitedfillingpressureofacylinderunderthereferencetemperature(15).3.2 SymbolsThefollowingsymbolsapplytothisDocument.BThicknessofdiscsample(m);Pe,Gaspermeabilitycoefficientofmaterial(mol.m(m2.s.Pa);SSurfaceareaofthesampleexposedtohydrogenduringthepermeationtest(m2);APPressuredifference
15、betweenhigh-pressuresideandlow-pressuresideofthesampleduringthepenetrationtest(Pa);丝/Gastransmissionrateduringsteadypermeation(mols).4 Generalrequirements4.1 Thetestsofhydrogencompatibilityofplasticlinerforhighpressuregaseoushydrogencylinderinvolveplasticlinermaterialtestandcylinderlinertest.Theplas
16、ticlinermaterialtestincludeshydrogenpermeationtest,physicalpropertytest,mechanicalpropertytest(tensilepropertytest),hydrogeninitialcyclingtestandhydrogenextendedagingtest;thecylinderlinertestincludesextremetemperaturecyclingtest,linercollapseandblistertest.ThetestprocedureisasshowninFigure1.4.2 Theh
17、ydrogencompatibilitytestapparatusshallbedesigned,installedandmanagedasspecifiedinGB/T29729andGB/T34542.1.4.3 Thetestapparatusshouldbefreefromimpuritiesthatcouldinteractwiththesampleundertestorcontaminatethehydrogentestgas.5 TestConditions5.1 Gassource5.1.1 Thecompositionofhydrogenusedinthetestshallc
18、onformtotherequirementsonqualityofhydrogenforfuelcellvehiclesasspecifiedinGB/T37244.5.1.2 Thepurityofnitrogenorinertgasusedforreplacementshallbegreaterthanorequalto99.999%.5.2 ReplacementFigure1Procedurefortestsofhydrogencompatibilityofplasticlinerforhighpressuregaseoushydrogencylinder5.2.1 Priortot
19、hetest,thetestsystemandhydrogensupplypipelinesystemshallbereplacedwithnitrogenorinertgas,andthenwithhydrogen.Thevolumeofoxygeninthetestsystemshallbetestedbeforetheintroductionofhydrogen,whichshallnotexceed1%.Uponcompletionofthereplacement,thevolumeofoxygeninthetestsystemshouldbelessthanorequaltol106
20、,andthevolumeofwatershouldbelessthanorequalto5106.5.2.2 OxygencontentshouldbetestedasspecifiedinGB/T28726orGB/T6285,watercontentshouldbetestedasspecifiedinGB/T5832.1orGB/T5832.2.5.2.3 Whenthehydrogen,replacementgasandreplacementprocedureusedforthetestcomplywiththeprovisionsof5.1.1,5.1.2and5.2.1respe
21、ctively,andwhentheoxygenandwatercontentinthetestsystemmeettherequirementsof5.2.1inthreeconsecutivetests,itisnotnecessarytodetecttheoxygenandwatercontentinthetestsystemwithin6months.6 TestMethods6.1 Plasticlinermaterialtest6.1.1 Generalrequirements6.1.1.1 Thebasematerialtestshallbecarriedoutforthesea
22、mlessplasticliner,andthebasematerialtestandweldedjointtestshallbecarriedoutfortheweldedplasticliner.6.1.1.2 Thesamplesforplasticlinermaterialtestshallbetakenfromtwocircumferentialsectionsofthesameliner.Take4hydrogenpermeationsamplesand1physicalpropertysampleatanintervalof120oalongthecircumferentiald
23、irectionofonesection.Take6tensilepropertysamples,and2hydrogenagingsamplesatanintervalof120oalongthecircumferentialdirectionoftheothersection,asshowninFigure2:a) Seamlessplasticliner:thesectionsforsamplingfallinthemiddleofthebarrelwhilethesectionspacingshallbegreaterthan200mm;b) Weldedplasticliner:wh
24、enthereisonecircumferentialweldedjoint,takesamplesfromthemiddlebetweenthetwoendsofthecylinderandtheweldedjoints;whentherearetwocircumferentialweldedjoints,takesamplesfromthemiddleofthecylinder,andthecross-sectionalspacingshouldbegreaterthan200mm.6.1.1.3 Forweldedplasticliners,take6tensilepropertiess
25、amplesand2hydrogenagingsamplesatanintervalof120oalongthecircumferentialdirectionateachweldingjoint.Forblowmoldedlinerswithpartinglines,take6tensileperformancesamplesand2hydrogenagingsamplesatthemoldline,andthesamplinglocationsareshowninFigure2.Whensampling,ensurethattheweldorpartinglineisinthemiddle
26、ofthesample.6.1.1.4 Thesamplesurfaceshallbefreeofwrinkles,creases,inclusions,porosityorotherdefects.6.1.1.5 Thesamplesshallbestoredproperlyinadryenvironment.Figure2Samplingsiteforplasticlinermaterialtest6.1.2 Hydrogenpermeationtest6.1.2.1 Sample6.1.2.1.1 Thediscsamplewithadiameterof(781)mmshouldbeus
27、ed.Thediameterofthecontactareabetweenthesampleandhydrogenshallbegreaterthanorequalto25mm,whilethethicknessofthesampleistakenasthethicknessoftheinnertank.6.1.2.1.2 Forthesamelinermaterial,12hydrogenpermeationtestsamplesshallbeprepared,dividedintothreegroups,4samplesineachgroup.6.1.2.1.3 Priortothetes
28、t,thediscsampleshallbeplacedinavacuumdryingoven,wheretheabsolutepressureis1,000Pa-5,000Paandthetemperatureis65,untilthemasslossofthesampleislessthan0.1%within24h.6.1.2.2 Testdevice6.1.2.2.1 SeeAnnexAforthebasicstructureofthemainbodyofthehydrogenpermeationtestdevice.6.1.2.2.2 Themeshsizeofthewire-mes
29、hscreenshouldbelessthanorequalto0.15mm,thepercentageofsieveareashouldbegreaterthanorequalto35%,andthewirediametershouldbeselectedasspecifiedinGB/T5330.1.6.1.2.2.3 Theopeningporosityofsinteredmetalsupportshouldbegreaterthanorequalto40%anditshouldbecalibratedasspecifiedinGB/T5163beforethetest.6.1.2.2.
30、4 Thesealingringshouldbereplacedeverytimethehydrogenpermeationtestiscarriedout.6.1.2.2.5 Thecontrolaccuracyofthetemperaturecontroldeviceshallnotbelowerthan1;thecontrolaccuracyofthepressurecontroldeviceshallnotbelowerthan1%ofthetestpressure.6.1.2.3 Testprocedure6.1.2.3.1 Priortothetest,thecavityonthe
31、highpressuresideofthesampleshallbereplacedaccordingtotherecommendationsgivenin5.2.1.6.1.2.3.2 Performthehydrogenpermeationtestunderthefollowingtemperatureandpressureconditionsforeachofthe4groupsofsamples:a) (551),1.15timesthenominalworkingpressureofthecylinder;b) (151),1.0timesthenominalworkingpress
32、ureofthecylinder;c) (551),0.1timesthenominalworkingpressureofthecylinder;d) (151),0.1timesthenominalworkingpressureofthecylinder.6.1.2.3.3 Atthespecifiedtesttemperature,pressurizethehighpressuresideofthesampletothespecifiedtestpressure.Afterthetemperatureandpressureonthehighpressuresidearestabilized
33、,measurethehydrogentransmissionrateonthelowpressuresideofthesample.Samplingshouldbeperformedatleastonceevery10mininthenon-steadystatephase,andatleastonceevery30mininthesteadystatephase,untilthemaximumdeviationofthehydrogentransmissionrateislessthanorequalto1%overaperiodofmorethan24h.Recordthehydroge
34、ntransmissionrateonthelow-pressuresideversustime,asshowninFigure3.6.1.2.3.4 Methodsformeasuringthehydrogentransmissionrateonthelow-pressuresideincluding(butnotlimitedto):a) Measurethechangeofhydrogenconcentrationonthelow-pressureside;b) Measuringgaspressurechangesonthelow-pressureside;c) Measuretheg
35、asvolumechangeonthelow-pressureside;d) Adoptotherequivalentmethods.6.1.2.3.5 Atthecompletionofthetest,thepressurereleaserateonthehigh-pressuresideofthesampleshouldnotbelessthan1.2timesthemaximumhydrogenreleaserateofthecylinderduringactualuse.6.1.2.3.7 Followingthecompletionofthetest,thesamplesurface
36、shallbeinspectedandrecordedforthepresenceofblisterorotherdefectsr11equalityofthesampleshouldbemeasuredandrecordedrespectivelybeforethetestand48hafterthetest.6.1.2.3.8 Eachgroupofsamplesshallbesubjectedtothehydrogenpermeationtestrespectivelybeforethehydrogencycletestand48hoursafterthehydrogencycletes
37、taccordingtothetestprocedureshowninFigure1.6.1.2.3.9 CalculatethehydrogenpermeabilitycoefficientaccordingtoFormula(1).丝a(1)/SAP(o三)/ZnS2dmo二Ce营u.2，wulSUEUj30=PA=SteadystateFigure3Examplecurveofhydrogentransmissionrateversustimeonthelowpressureside6.1.3 Physicalpropertytest6.1.3.3 Sample6.1.3.1.1 The
38、long-stripsamplewithalengthof(400.2)mm,awidthof(100.2)mmandathicknessof(40.2)mmshouldbeused.Whenthethicknessofthelinerislessthan4mm,thethicknessofthesampleshouldbeequaltothatoftheliner.6.1.3.1.2 Forthesamelinermaterial,atleast3samplesshallbepreparedforthephysicalpropertytest.6.1.3.2 Testdevice6.1.3.
39、2.1 ThedensitymeasuringinstrumentshallconformtotherelevantprovisionsofMethodAinGB/T1033.1.6.1.3.2.2 Forthesamplewithamassof1g5g,themeasuredvalueshallbeaccurateto0.1mg;forthesamplewithamassgreaterthan5g,themeasuredvalueshallbeaccurateto1mg.6.1.3.2.3 Thedimensionmeasuringequipmentshallhaveanaccuracyof
40、notlessthan0.0025mm.6.1.3.3 Testmethod6.1.3.3.1 Measurethesamplemass,densityandvolumeaccordingtothefollowingsteps:a) Recordappearanceimagesofthesamplebyusingadigitalcamera;b) Measuredrymassofthesamplebyusingananalyticalbalance;c) Weighthetotalmassoftheimpregnationvesselandimpregnationsolutionbyusing
41、ananalyticalbalance,andweighthemassofthesuspensionwireandsettlingblockseparately;d) Immersethesampleintheimpregnationsolution,removetheairbubblesonthesamplesurfaceandweighthesample,wherethesampleshallnotbeincontactwithwalloftheimpregnationvessel;e) Drysurfaceofthesampletakenout;f) Calculatedensityan
42、dvolumeofthesampleasspecifiedinGB/T1033.1.6.1.3.3.2 Measuredimensionsofthesamplebyusingatoolmicroscopeorotherappropriatemeasuringinstrument.6.1.3.3.3 Measure,priortothehydrogencyclingtest,within10minuponcompletionofthetest,24hlateruponcompletionofthetestand48hlateruponcompletionofthetest,dimensions,
43、volume,massanddensityofthesample,respectively,aswellasrecordapparentimagesofthesample.6.1.3.4 Acceptanceindicators48hlateruponcompletionofthehydrogencyclingtest,thesamplemasschangerateislessthanorequalto0.75%,itsdensitychangerateislessthanorequalto0.75%,anditsvolumechangerateislessthanorequalto10%.6
44、.1.4 Mechanicalpropertytest6.1.4.1 Sample6.1.4.1.1 ThesampleshapeanddimensionsshallconformtotheprovisionsofGB/T1040.2.6.1.4.1.2 Forthesamelinermaterial,18samplesshallbepreparedforthemechanicalpropertytest,dividedinto2groups,9foreachgroup.6.1.4.2 TestdeviceThetestdeviceshallconformtotheprovisionsofGB
45、/T1040.1,GB/T1040.2andrelevantnationalstandards.6.1.4.3 TestmethodThemechanicalpropertytestfortheplasticlinermaterialshallconformtotheprovisionsofGB/T1040.1,GB/T1040.2andrelevantnationalstandards.Thetestshallbeperformedaccordingtothefollowingsteps:a) Priortothehydrogencyclingtest,perfonnthetensilete
46、stforthefirstgroupofsamplesatroomtemperature,-50and90(3samplesforeachtemperature),respectively,andthenrecordthetensilecurve;b) Completethehydrogencyclingtestwiththesecondgroupofsamples,andperform,48hlateruponcompletionofthehydrogencyclingtest,thetensiletestatroomtemperature,-50and90(3samplesforeacht
47、emperature),andthenrecordthetensilecurve;c) Evaluatethematerialmechanicalpropertyofthesample.6.1.4.4 AcceptanceindicatorsThesamplesuffersaductilefracture,wherethetensilestrengthandnominalstrainoftensilefracturemeetrequirementsofthedesigndocumentation.Underthesametesttemperature,theaveragetensilestre
48、ngthofthematerialbeforeandafterthehydrogencyclingtestshallnotchangebymorethan20%,andtheaveragenominalstrainoftensilefractureshallnotchangebymorethan20%.6.1.5 Hydrogencyclingtest6.1.5.1 SampleThesamplesforhydrogencyclingtestshallinclude:a) The12samplesthathaveundergonethefirsthydrogenpermeationtestin6.1.2;b) The3samplesthathaveundergonethefirstphysicalpropertytestin6.1.3;c) Thesecondgroupofsamplesin6.1.4.6.1.5.2 Testdevice6.1.5.2.1 Thetest
