ISO5208-2008工业用阀门 金属阀门的压力试验

ReferencenumberISO5208:2008(E).ISO2008INTERNATIONALSTANDARDISO5208Thirdedition2008-08-01Industrialvalves—PressuretestingofmetallicvalvesRobinetterieindustrielle—EssaissouspressiondesappareilsderobinetteriemétalliquesISO5208:2008(E)PDFdisclaimerThisPDFfilemaycontainembeddedtypefaces.InaccordancewithAdobe'slicensingpolicy,thisfilemaybeprintedorviewedbutshallnotbeeditedunlessthetypefaceswhichareembeddedarelicensedtoandinstalledonthecomputerperformingtheediting.Indownloadingthisfile,partiesacceptthereintheresponsibilityofnotinfringingAdobe'slicensingpolicy.TheISOCentralSecretariatacceptsnoliabilityinthisarea.AdobeisatrademarkofAdobeSystemsIncorporated.DetailsofthesoftwareproductsusedtocreatethisPDFfilecanbefoundintheGeneralInforelativetothefile;thePDF-creationparameterswereoptimizedforprinting.EverycarehasbeentakentoensurethatthefileissuitableforusebyISOmemberbodies.Intheunlikelyeventthataproblemrelatingtoitisfound,pleaseinformtheCentralSecretariatattheaddressgivenbelow.COPYRIGHTPROTECTEDDOCUMENT.ISO2008Allrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedinanyformorbyanymeans,electronicormechanical,includingphotocopyingandmicrofilm,withoutpermissioninwritingfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.ISOcopyrightofficeCasepostale56[e-mail]–AllrightsreservedISO5208:2008(E).ISO2008–AllrightsreservediiiContentsPageForeword...........................................................................................................................................................ivIntroduction.......................................................................................................................................................v1Scope.....................................................................................................................................................12Termsanddefinitions...........................................................................................................................13Conditionsrelevanttopressuretesting..............................................................................................23.1Purchaserexaminationoptions...........................................................................................................23.2Witnessing.............................................................................................................................................23.3Closurepressuretestingoptions........................................................................................................34Requirementsforpressuretesting......................................................................................................34.1Forewarning..........................................................................................................................................34.2Location.................................................................................................................................................34.3Testequipment.....................................................................................................................................34.4Pressuremeasuringequipment...........................................................................................................34.5Shellsurfaces........................................................................................................................................34.6Testfluid................................................................................................................................................34.7Testpressure........................................................................................................................................44.8Pressuretests.......................................................................................................................................44.9Closuretestcompliance.......................................................................................................................44.10Shelltest................................................................................................................................................64.11Optionalbackseattest..........................................................................................................................74.12Closuretest...........................................................................................................................................84.13Certificationofcompliance...................................................................................................................9AnnexA(normative)EquivalentDNnumbers...............................................................................................12Bibliography................................................................