SAE-J2064-2005

SURFACEVEHICLESTANDARDR134aRefrigerantAutomotiveAir-ConditionedHoseSAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright©2005SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.TOPLACEADOCUMENTORDER:Tel:[phone](insideUSAandCanada)Tel:[phone](outsideUSA)Fax:[phone]Email:[e-mail]:®J2064REV.DEC20051.ScopeThisSAEStandardcovershoseandhoseassembliesintendedforconductingliquidandgaseousR134arefrigerantinautomotiveair-conditioningsystems.ThehoseshallbedesignedtominimizepermeationofR134arefrigerant,contaminationofthesystem,andtobefunctionaloveratemperaturerangeof–30°Cto125°C.Specificconstructiondetailsaretobeagreeduponbetweenuserandsupplier.Ahosemarked“J2064”signifiesthatithasbeencoupled,tested,andhasmettherequirementsofSAEJ2064.Itisthehoseassemblymanufacturer’sresponsibilitytoseethattheassembliesmeetthespecifiedacceptancecriteriaforthisspecification.1.1RationaleChangesmadetothisdocumentinclude:MovedTable1fromsection3.2.4tosection5.2.4-(Tableappliestothissection).Renamedsection5.1fromTestConditionstoSampleConditioning(samplesarebeingconditioned).ClarifiedSection5.1.Thetemperatureofthetestingroomshallbemaintainedat23°C±2°C.Thetemperatureofthetesthoseorhoseassembliesshallbestabilizedfor24hatthetestingroomtemperaturepriortotesting.ChargedSamplesshallbestabilizedfor24hrs.@23°C±2°Cpriortotesting.Samplesshallbecheckedtoensurespecifiedchargeandidentifychargeloss.Section5.2.2ChargingProcedureandInitialWeights-addevacuationtothetestprocedure.(iscurrentlyacommonpractice)Section5.2.4EstablishConstantLossRate-replacedexposureswithexposure(correctedgrammar)Section5.2.4EstablishConstantLossRate-replacedtakenwithreported(correctedgrammar)Section5.2.4EstablishConstantLossRate-DeletedThisisnottobealotreleasetest.Thelotreleasetestistobeagreeduponbetweenthevendorandconsumer.(redundant)CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAENotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,```,,,,````-`-`,,`,,`,`,,`---SAEJ2064RevisedDEC2005-2-Section5.2.5LossRateDetermination-Deletedsectiontitle5.2.6andaddedtheexactwordingfortheacceptancedeterminationunderSection5.2.5(correctedmislabeledsectionnumbering).Section5.3CouplingIntegrity-DeletedEitherTestOption1orTestOption2maybeused.(redundant).Section5.3CouplingIntegrity-DeletedEachassemblyisattachedtoacanisterhavinganinternalvolumeof1260cm3±25cm3andequippedwithachargingfitting.ReplacedwithEachassemblyisattachedtoacanisterwithaminimuminternalvolumeof900cm3andequippedwithachargingfitting.Theminimumcanistervolumeensuresamaximumpressurelossof0.10MPabetweenrecharges.Aseventhcoupledassemblyisusedasavolatilitysampletoaccountforweightlossesnotassociatedwithrefrigerantlosses.2.References2.1ApplicablePublicationThefollowingpublicationformsapartofthisspecificationtotheextentspecifiedherein.2.1.1ASTMPUBLICATIONAvailablefromASTM,100BarrHarborDrive,WestConshohocken,PA19428-2959,Tel:[phone],—MethodsofTestingRubberHose3.Manufacture3.1SizeStandarddimensionsaregiveninthefirstcolumnofTable1.3.2TypesIncluding,butnotlimitedtothefollowing:3.2.1TYPEA—ELASTOMERIC,TEXTILEREINFORCEDThehoseshallbemadehavingasuitableseamlesssyntheticelastomerictube.Thereinforcementshallconsistoftextileyarn,cord,orfabricadheredtothetubeandcover.Theoutercovershallbeheat-andozone-resistantsyntheticelastomer.3.2.2TYPEB—ELASTOMERIC,WIREREINFORCEDThehoseshallbebuilthavingasuitableseamlesssyntheticelastomerictube.Thereinforcementshallconsistofsteelwireadheredtotheelastomerictube.Thecovershallconsistofaheat-resistanttextileyarnimpregnatedwithasyntheticelastomericcement.CopyrightSAEInternationalProvidedbyIHSunderlicensewithSAENotforResaleNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,```,,,,````-`-`,,`,,`,`,,`---SAEJ2064RevisedDEC2005-3-3.2.3TYPEC—BARRIER,TEXTILEREINFORCEDThehoseshallhaveasuitablethermoplasticbarrierbetweenelastomericlayers.Thereinforcementshallconsistofsuitabletextileyarn,cord,orfabricadheredtothetubeandcover.Theoutercovershallbeheat-andozone-resistantsyntheticelastomer.3.2.4TYPED—THERMOPLASTIC,TEXTILEREINFORCED,ELASTOMERICCOVERThehoseshallhaveasuitablethermoplastictube.Thereinforcementshallconsistofasuitabletextileyarn,cord,orfabricadheredtothetubeandcover.Theoutercovershallbeheat-andozone-resistantsyntheticelastomer.3.2.5TYPEE—VENEER,TEXTILEREINFORCEDThehoseshallhaveasuitablethermoplasticveneerliningt