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ISO2016Non-destructivetestingofwelds—Visualtestingoffusion-weldedjointsContrlenondestructifdesassemblagessoudés—ContrlevisueldesassemblagessoudésparfusionINTERNATIONALSTANDARDISO17637Secondedition2016-12-01ReferencenumberISO17637:2016(E)Thispreviewisdownloadedfromwww.
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se/std-921248ISO17637:2016(E)iiISO2016–AllrightsreservedCOPYRIGHTPROTECTEDDOCUMENTISO2016,PublishedinSwitzerlandAllrightsreserved.
Unlessotherwisespecified,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.
PermissioncanberequestedfromeitherISOattheaddressbeloworISO'smemberbodyinthecountryoftherequester.
ISOcopyrightofficeCh.
deBlandonnet8CP401CH-1214Vernier,Geneva,SwitzerlandTel.
+41227490111Fax+41227490947copyright@iso.
orgwww.
iso.
orgThispreviewisdownloadedfromwww.
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sis.
se/std-921248ISO17637:2016(E)Foreword.
iv1Scope.
12Normativereferences.
13Termsanddefinitions.
14Testconditionsandequipment.
15Personnelqualification.
26Visualtesting.
26.
1General.
26.
2Visualtestingofjointpreparation.
26.
3Visualtestingduringwelding.
26.
4Visualtestingofthefinishedweld.
36.
4.
1General.
36.
4.
2Cleaninganddressing.
36.
4.
3Profileanddimensions.
36.
4.
4Weldrootandsurfaces.
36.
4.
5Post-weldheattreatment.
46.
5Visualtestingofrepairedwelds.
46.
5.
1General.
46.
5.
2Partiallyremovedweld.
46.
5.
3Completelyremovedweld.
47Testrecords.
4AnnexA(informative)Examplesoftestequipment.
6Bibliography.
10ISO2016–AllrightsreservediiiContentsPageThispreviewisdownloadedfromwww.
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se/std-921248ISO17637:2016(E)ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).
TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.
Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.
Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.
ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.
TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.
InparticularthedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentsshouldbenoted.
ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seewww.
iso.
org/directives).
Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.
ISOshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.
DetailsofanypatentrightsidentifiedduringthedevelopmentofthedocumentwillbeintheIntroductionand/orontheISOlistofpatentdeclarationsreceived(seewww.
iso.
org/patents).
Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.
ForanexplanationonthemeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutISO'sadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT)seethefollowingURL:www.
iso.
org/iso/foreword.
html.
ThecommitteeresponsibleforthisdocumentisISO/TC44,Weldingandalliedprocesses,SubcommitteeSC5,Testingandinspectionofwelds.
Thissecondeditioncancelsandreplacesthefirstedition(ISO17637:2003),whichhasbeentechnicallyrevised.
RequestsforofficialinterpretationsofanyaspectofthisInternationalStandardshouldbedirectedtotheSecretariatofISO/TC44/SC5viayournationalstandardsbody.
Acompletelistingofthesebodiescanbefoundatwww.
iso.
org.
ivISO2016–AllrightsreservedThispreviewisdownloadedfromwww.
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Buytheentirestandardviahttps://www.
sis.
se/std-921248INTERNATIONALSTANDARDISO17637:2016(E)Non-destructivetestingofwelds—Visualtestingoffusion-weldedjoints1ScopeThisdocumentspecifiesthevisualtestingoffusionweldsinmetallicmaterials.
Itmayalsobeappliedtovisualtestingofthejointpriortowelding.
2NormativereferencesTherearenonormativereferencesinthisdocument.
3TermsanddefinitionsNotermsanddefinitionsarelistedinthisdocument.
ISOandIECmaintainterminologicaldatabasesforuseinstandardizationatthefollowingaddresses:—IECElectropedia:availableathttp://www.
electropedia.
org/—ISOOnlinebrowsingplatform:availableathttp://www.
iso.
org/obp4TestconditionsandequipmentTheilluminanceatthesurfacewithwhitelightshallbeaminimumof350lx;wearingoftintedgoggles(e.
g.
protectivesunglasses)increasestheminimumilluminance.
However,500lxisrecommended.
Fordirectinspection,theaccessshallbesufficienttoplacetheeyewithin600mmofthesurfacetobeexaminedandatananglenotlessthan30°(seeFigure1).
aRange.
Figure1—AccessfortestingRemoteinspectionusingmirrors,boroscopes,fibreopticcablesorcamerasshallbeconsideredwhentheaccessfortestinginaccordancewithFigure1isnotpossibleorwhenspecifiedbyanapplicationstandard.
Anadditionallightsourcecanbeusedtoincreasethecontrastandreliefbetweenimperfectionsandthebackground.
ISO2016–Allrightsreserved1Thispreviewisdownloadedfromwww.
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Buytheentirestandardviahttps://www.
sis.
se/std-921248ISO17637:2016(E)Wheretheresultofvisualtestingisinconclusive,thevisualtestshouldbesupplementedbyothernon-destructivetestingmethodsforsurfaceinspections.
ExamplesofequipmentusedforvisualtestingaregiveninAnnexA.
5PersonnelqualificationVisualtestingofweldsandtheevaluationofresultsforfinalacceptanceshallbeperformedbyqualifiedandcapablepersonnel.
ItisrecommendedthatthepersonnelperformingindirectvisualtestingisqualifiedaccordingtoISO9712oratanappropriatelevelintherelevantindustrysector.
6Visualtesting6.
1GeneralThisdocumentdoesnotdefinetheextentofvisualtesting.
However,thisshouldbedeterminedinadvance,e.
g.
byreferencetoanapplicationorproductstandard.
Theexaminershallhaveaccesstothenecessaryinspectionandproductiondocumentationrequired.
Anyvisualtestingpriorto,duringoraftercompletionoftheweldshouldbecarriedoutwhilephysicalaccessisstillpossible.
Thismayincludethevisualtestingofsurfacetreatments.
6.
2VisualtestingofjointpreparationWhenvisualtestingisrequiredpriortowelding,thejointshallbeexaminedtocheckthefollowing:a)theshapeanddimensionsoftheweldpreparationmeettherequirementsoftheweldingprocedurespecification;b)thefusionfacesandadjacentsurfacesarecleanandanyrequiredsurfacetreatmenthasbeencarriedoutinaccordancewiththeapplicationorproductstandard;c)thepartstobeweldedarecorrectlyfixedinrelationtoeachotheraccordingtodrawingsorinstructions.
6.
3VisualtestingduringweldingWhenrequired,theweldshallbetestedduringtheweldingprocesstocheckthefollowing:a)eachrunorlayerofweldmetaliscleanedbeforeitiscoveredbyafurtherrun,particularattentionbeingpaidtothejunctionsbetweentheweldmetalandthefusionface;b)therearenovisibleimperfections,e.
g.
cracksorcavities;ifimperfectionsareobserved,theyshallbereportedsothatremedialactioncanbetakenbeforethedepositionoffurtherweldmetal;c)thetransitionbetweentherunsandbetweentheweldandtheparentmetalissoformedthatsatisfactorymeltingcanbeaccomplishedwhenweldingthenextrun;d)thedepthandshapeofgougingisinaccordancewiththeWPSorcomparedwiththeoriginalgrooveshapeinordertoensurecompleteremovaloftheweldmetalasspecified;e)afteranynecessaryrepairs/remedialaction,theweldconformstotheoriginalrequirementsoftheWPS.
2ISO2016–AllrightsreservedThispreviewisdownloadedfromwww.
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