ISO 23279-2017 Non-destructive testing of welds - Ultrasonic testing - Character

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1、INTERNATIONALISOSTANDARD23279Thirdedition2017-08Non-destructivetestingofwelds—Ultrasonictesting—CharacterizationofdiscontinuitiesinweldsEssaisnondestructifsdesassemblagessoudés—Contrôleparultrasons—CaractérisationdesdiscontinuitésdanslesassemblagessoudésReferencenumberISO23279:2017(E)©ISO2017ISO

2、23279:2017(E)COPYRIGHTPROTECTEDDOCUMENT©ISO2017,PublishedinSwitzerlandAllrightsreserved.Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermi

3、ssion.PermissioncanberequestedfromeitherISOattheaddressbeloworISO’smemberbodyinthecountryoftherequester.ISOcopyrightofficeCh.deBlandonnet8•CP401CH-1214Vernie,rGeneva,SwitzerlandTel.+41227490111Fax+41227490947copyright@iso.orgwww.iso.orgi©ISO2017–AllrightsreservedISO23279:2017(E)ContentsPageForew

4、ord.....iv1Scope.....12Normativereferences....13Termsanddefinitions....14Principle.....15Criteria.....25.1General....25.2Echoamplitudecriteria(stages1and2)...35.2.1Lowamplitudes(stage1)....35.2.2Highamplitudes(stage2)....35.3Directionalreflectivitycriteria(stage3)...35.3.1Applicabilitybasedonlen

5、gth...35.3.2Applicationconditions...35.3.3Criteria....35.4Echostaticpatterncriteria(stage4)...45.5Transverseechodynamicpatterncriteria(stage5)..45.6Complementarytesting....4AnnexA(normative)Classificationofindicationsfrominternaldiscontinuitiesinwelds—Flowchartprocedure....5AnnexB(informative)Di

6、rectionalreflectivity...8AnnexC(informative)Basicechodynamicpatternsofreflectors..10©ISO2017–AlrightsreservediISO23279:2017(E)ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnorm

7、allycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,