ISO／DIS 20766-14：2020.docx

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1、DRAFTINTERNATIONA1STANDARDISO/DIS20766-14IS0TC22SC41Votingbeginson:2023-04-29Secretariat:UNIVotingterminateson:2023-07-22Roadvehic1es1iquefiedpetro1eumgas(1PG)fue1systemcomponents一Part14:Vaporizer/Pressureregu1atorVMcu1esroutiersEquipementspourVdhiCU1eSUti1isantIegazdeparo1eIiqUefid(GP1)commecombust

2、ib1e一Partie14:Rgu1ateurdepression/vapeurICS:ISOicsTHISDOCUMENTISADRAFTCIRCU1ATEDFORCOMMENTANDAPPROVA1.ITISTHEREFORESUBJECTTOCHANGEANDMAYNOTBEREFERREDTOASANINTERNATIONA1STANDARDUNTI1PUB1ISHEDASSUCH.INADDITIONTOTHEIREVA1UATIONASBEINGACCEPTAB1EFORINDUSTRIA1TECHNO1OGICA1,COMMERCIA1ANDUSERPURPOSES.DRAFTI

3、NTERNATIONA1STANDARDSMAYONOCCASIONHAVETOBECONSIDEREDINTHE1IGHTOFTHE1RPOTENTIA1TOBECOMESTANDARDSTOWHICHREFERENCEMAYBEMADEINNATIONA1REGU1ATIONS.RECIPIENTSOFTHISDRAFTAREINVITEDTOSUBMIT.WITHTHEIRCOMMENTS.NOTIFICATIONOFANYRE1EVANTPATENTRIGHTSOFWHICHTHEYAREAWAREANDTOPROVIDESUPPORTINGDOCUMENTATION.Thisdocu

4、mentiscircu1atedasreceivedfromthecommitteesecretariat.ReferencenumberISO/DIS20766-14:2023(E)COPYRIGHTPROTECTEDDOCUMENTISO2023A11rightsreserved.Un1essotherwisespecied,orrequiredinthecontextofitsimp1ementation,nopartofthispub1icationmaybereproducedoruti1izedotherwiseinanyformorbyanymeans,e1ectronicorm

5、echanica1,inc1udingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbe1owor!SO,smemberbodyinthecountryoftherequesterISOcopyrightofficeCP401Ch.deB1andonnet8CH-1214VernieGenevaPhone:*41227490111Fax:41227490947Emai1:copyright

6、iso.orgWebsite:www.iso.orgPub1ishedinSwitzer1andPageContentsForeword1“一一一-一一一一一12Normativereferences3Termsanddenitions425Constructionandassemb1y26Tests6.1 App1icabi1ity6.2 Hydrostaticstrength6.4 Continuedoperation6.5 Insu1ationresistance.22333346.6 Minimumopeningvo1tage6.7 Pressureimpu1se6.7.1 Inter

7、na1impu1se.一6.7.2 Externa1impu1se6.8 Waterjacketfreezing444ForewordISO(theInternationa1OrganizationforStandardization)isawor1dwidefederationofnationa1standardsbodies(ISOmemberbodies).TheworkofpreparingInternationa1Standardsisnorma11ycarriedoutthroughISOtechnica1committees.Eachmemberbodyinterestedina

8、subjectforwhichatechnica1committeehasbeenestab1ishedhastherighttoberepresentedonthatcommittee,internationa1organizations,governmenta1andnon-governmenta1,in1iaisonwithISO,a1sotakepartinthework.ISOco11aboratesc1ose1ywiththeInternationa1E1ectrotechnica1Commission(IEC)ona11mattersofe1ectrotechnica1stand

9、ardization.Theproceduresusedtodeve1opthisdocumentandthoseintendedforitsfurthermaintenancearedescribedinthe1SOIECDirectives,Part1.Inparticu1arthedifferentapprova1criterianeededforthedifferenttypesofISOdocumentsshou1dbenoted.Thisdocumentwasdraftedinaccordancewiththeeditoria1ru1esoftheISO/IECDirectives

10、,Part2(seeWWW,isoQigdiecUves).Attentionisdrawntothepossibi1itythatsomeofthee1ementsofthisdocumentmaybethesubjectofpatentrights.ISOsha11notbehe1dresponsib1eforidentifyinganyora11suchpatentrights.Detai1sofanypatentrightsidentifiedduringthedeve1opmentofthedocumentwi11beintheIntroductionand/orontheISO1i

11、stofpatentdec1arationsreceived(seeWWW.iso.org/patents).Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexp1anationonthevo1untarynatureofstandards,themeaningofISOspecifictermsandexpressionsre1atedtoconformityassessment,aswe11asinformation

12、aboutISOsadherencetotheWor1dTradeOrganization(WTO)princip1esintheTechnica1BarrierstoTrade(TBT)seethefo11owingUR1:www.iso.org/iso/foreword.htm1ThisdocumentwaspreparedbyTechnica1CommitteeISO/TC22,RoadVehic1es,SubcommitteeSC41,Specificaspectsforgaseousfue1s.A1istofa11partsintheISO20766-seriescanbefound

13、ontheISOwebsite.Roadvehic1es1iquefiedpetro1eumgas(1PG)fue1systemcomponents一Part14:Vaporizer/Pressureregu1ator1 ScopeThisdocumentspecifiesgenera1requirementsanddefinitionsof1iquefiedpetro1eumgasfue1components,intendedforuseonthetypesofmotorvehic1esasdefinedinISO3833.Ita1soprovidesgenera1designprincip

14、1es,andspecifiesrequirementsforinstructionsandmarking.Thisdocumentisapp1icab1etovehic1es(mono-fue1,bi-fue1ordua1-fue1app1ications)usinggaseousfue1sinaccordancewithISO9162.Itisnotapp1icab1etothefo11owing:a) fue1containers;b) stationarygasengines;c) containermountinghardware;d) e1ectronicfue1managemen

15、t;ande) refue11ingreceptac1es.NOTE1Itisrecognizedthatmisce11aneouscomponentsnotspecifica11yaddressedhereincanbeexaminedforcomp1iancewiththecriteriaofanyapp1icab1epartofISO20766finc1udingtestingtotheappropriatefunctiona1tests.NOTE2A11referencestopressureinthisdocumentareconsideredgaugepressuresun1essotherwisespecified.NOTE3Thisdocumentapp1iestodeviceswhichhaveaservicepressureintherangeof110kPa(Butanerichat20)and840kPa(Propaneat20),hereinafterreferredtointhisInternationa1Standard.Otherservicepressurescanbeaccommodatedby