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1、ISOINTERNATIONA1.STANDARD4706editionThird202309Gascy1.indersRefi1.1.ab1.ewe1.dedstee1.cy1.indersTestpressure60barandbe1.owBoutei1.1.esgazBoutei1.1.esenacierSoUdeeSrechargeab1.esPressiondessaide60baretmoinsISO2023COPYRIGHTPROTECTEDDOCUMENTISO2023IUirhM*hedbdi1.iUedotherwiseupdhi.o啪InyM1.tta0DmkfifiU8
2、1.andonnet8CH-1214Vernier,GenevaPhone：M1.227490111觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andContentsForewordIitroduct1.onVVi1Scope23NormativereferencesTerms,definitionsandsymbo1.s23.1Termsanddefinitions.2A3qInspectionandtestinc4545.1Genera1.45.2Cposition5ODeSign556.2Va1.veprotection67Ca1.cu1.ationofminimu
3、mwa1.1.thickness(sidewa1.1.andends)67.1Sidewa1.1.thickness.6Q7.2Designofendsconcavecopressure7OConstructionandworkmanship108.1We1.dingqua1.ification10108.13fi(ionsmoferia1.4pdsureandno11rnressure)H8.1.4We1.dingmateria1.s,118.1.5Retesting11时:4E61W观般长娓根荻OCeSSrequiringrecertification118.1.8We1.derqua1.
4、ificationtests128.1.9Resu1.tsofwe1.derqua1.ification12.Pim三jjintsp%seQparts128.4To1.erances,1414SKfif1.Uss8.5Non-pressure-containingattachments158.6Va1.veprotection159Testing169.1MeChanic3testing169.1.1Genera1.requirements169.29Hu2sTpesofdeFt1.dtau1.pca1.uMirfitestresu1.ts209.2.1Testconditions.209.2
5、.2InterPrerationoftest209.3军温SUrCv。怕法etrkexpansion209.4Radiographicandmacroexamination219.4.1Radiographicexamination21i1.9.4.3ExaminationofAm1.f1.ttigttfciitaiijpressurecontaininga1.1.adiments229.4.5Unacceptab1.eimperfectionsatradiographicormacroexamination22109.5Visua1.examinationofthesurfaceofthew
6、e1.d22HAcceptancecriteria231TP)PeaPPb*oa.2Batchtests12.1Inspection1.ots25122RateofSdmP1.ing2S123QuantityoveriI0即MdersWatewatercapacityIeSSgreatCriWnertft6135113141512.5Fai1.uretomeetbatchtestrequirements26TCSt/examinationsfora1.1.pressurecy1.inders27N1.a1.akingS27Certificate27Annex A (informative)Ne
7、wdesigntypeapprova1.certicate28Annex B (informative)Acceptancecertificate30Bib1.iography32Forewordthrough(ISOmittees.workofpreparingbodyinternationa1.Standardsisnorma1.1.ytechnica1.e1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofdescribedtypesoSOIECDi
8、reCtiVeSrShOU1.dbePartiCu1.ar,documentwasapprova1.accordancewiththe1.SO（八）Patent(三).a1.tcntion1.akcs1.hcnopoSSibiHtyConCerningimP1.ementationVa1.idiIyapp1.icabi1.ityinvo1.vec1.aimedCautioncdavai1.ab1.eWWW4sOiefginformation,Whichresponsib1.eidentifyinganypatcntconstitutenameendorsement,documentisinfo
9、rmationgivenfortheconvenienceofusersanddoesnotexpressionsre1.atedOrganization(WTO)assessment,asinwe1.1.asinformationBarrierstoTradeadherenceseeCyfinderdocumentwaspreparedbyTechnica1.CommitteeISO/TC581Gascy1.inders,SubcommitteeSC3,revised. referenceshavebeenupdated； Xrayfrequencyhasbeenchangedfrom50t
10、o250;comp1.eteIistingquestionsbodiesthiscandocumentwww4seFgfnefnbettn1.nationa1.standardsbody.AISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardsvbodiesmemberbodies).TheEachmemberinterestedinsubjectforwhichcarriedoutcommitteehasbeenestab1.ishedhastheright
11、toberepresentedonthatcommittee.Internationa1.organizations,governmenta1.andnongovernmenta1.,in1.iaisonwithISO,a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththeTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurthermaintenancearedifferentinthedocumentPart1.InnOtrd-Thi1.thedifferci
12、i【draf1.cdincriteriaforeditoria1.ru1.esoftheISO/IECDirectives,Part2(seewww.iso.org/direc1.ives).ofdrawsISOtopositionthatthetheevidence,ofthisordocumentmayofanytheusepatentrightsinrespectthereof.Asofthedateofpub1.icationofthisdocument,ISOhadnotreceivednoticeof（八）PatCnt(三)whichmayberequiredtoimp1.emen
13、tthisdocument.However,imp1.ementorsarcdatabasethatthisatmaythe.ISOsha1.1.behe1.dmayforobtainedfromtheora1.suchpatentrights.AnytradeusedinthisForanexp1.anationofthevo1.untarynatureOfstandards,themeaningofISOspecifictermsandtheWor1.dTradeconformityprincip1.estheTechnica1.about1.SO,s(TBT)1towww.iso.org/iso/foreword.htm1.Thisdesign.Thisthirdeditioncance1.sandrep1.acesthesecondedition(ISO4706:2008),whichhasbeentechnica1.1.yThemainchangesareasfo1.1.ows: X-rayisrequiredonthree-piecedesigns; criteriaforX-rayretestingrequire
