ButtweldingEndsANAMERICANNATIONALSTANDARDASMEB16.25-2007(RevisionofASMEB16.25-2003)CopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=CSAToronto/5934117001,User=liu,ericNotforResale,09/27/200818:26:53MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,,,`,````,````,,,``,,``,,,``-`-`,,`,,`,`,,`---www.bzfxw.comASMEB16.25-2007(RevisionofASMEB16.25-2003)ButtweldingEndsANAMERICANNATIONALSTANDARDThreeParkAvenue•NewYork,NY10016CopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=CSAToronto/5934117001,User=liu,ericNotforResale,09/27/200818:26:53MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,,,,`,````,````,,,``,,``,,,``-`-`,,`,,`,`,,`---www.bzfxw.comDateofIssuance:March7,2008ThenexteditionofthisStandardisscheduledforpublicationin2012.Therewillbenoaddendaissuedtothisedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesathttp://cstools.asme.orgastheyareissued.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtherisk...