API STD 管道有关的焊接

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1、中国特种设备检验网www.tejian.org服务电话：010-82896329服务信箱：zjzjb@vip.sina.com服务QQ：476348737承压类设备群(33670042)机电类设备群(30607295)无损检测群(70659973)DateofIssue:July2007AffectedPublication:APIStandard1104,WeldingofPipelinesandRelatedFacilities,October2005.ERRATA/ADDENDUMPleaseinsertthefollowingchan

2、gestoStd1104:Section3.2.2,Change:“branchweld:Thecompletedweldjoiningabranchpipeorbranchfittingtoarunpipe.”to“branchweld:Thecompletedgrooveand/orfilletweldjoiningasetonorsetinbranchpipeorasetonorsetinbranchfittingtoarunpipe中国特种设备检验网.”PleasereplaceAppendixAwiththefollowingatt

3、achment:www.tejian.org1中国特种设备检验网www.tejian.org服务电话：010-82896329服务信箱：zjzjb@vip.sina.com服务QQ：476348737承压类设备群(33670042)机电类设备群(30607295)无损检测群(70659973)APPENDIXA—ALTERNATIVEACCEPTANCESTANDARDSFORGIRTHWELDSA.1GeneralanditsconsistencycouldbesignificantlylessthanOptions1and2.Option

4、3shouldonlybeexercised,whenneces-TheacceptancestandardsgiveninSection9arebasedsary,byskilledpractitionerswithdemonstratedknowledgeonempiricalcriteriaforworkmanshipandplaceprimaryoffracturemechanicsandpipelineloadanalysis.Withimportanceonimperfectionlength.Suchcriteriahavepr

5、o-thesethreeoptionsthiscurrentrevisionoftheappendixvidedanexcellentrecordofreliabilityinpipelineserviceshouldprovideamorecompleteapproachtodetermineformanyyears.Theuseoffracturemechanicsanalysisinspectionandacceptancelimitsforimperfections.andfitness-for-purposecriteriaford

6、eterminingacceptanceItisusuallyimpracticaltoqualifyindividualpipelinecriteriaisanalternativemethodandincorporatestheeval-weldsforthealternativeacceptancelimitsafteradefectunderuationofbothimperfectionheightandimperfectionSection9isdetected,becausedestructivetestingisrequire

7、dlength.Typically,butnotalways,thefitness-for-purposetoestablishtherequiredmechanicalpropertiesfortheweld-criteriaprovidemoregenerousallowableimperfectioningprocedureunderconsideration.length.Additionalqualificationtests,stressanalysis,andThisappendixprovidesprocedurestodet

8、erminethemaxi-inspectionarerequiredtousethefitness-for-purposecrite-mumallowableim