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1、BSENISO16827:2025Non-destructivetestingUltrasonictesting一Characterizationandsizingofdiscontinuitiesbsi.NationalforewordThisBritishStandardistheUKimplementationofENISO16827:2025.ItisidenticaltoISO16827:2025.ItsupersedesBSENISO16827:2014,whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedt
2、oTechnicalCommitteeWEE/46/3,UltrasonicTesting.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitscommitteemanager.ContractualandlegalconsiderationsThispublicationhasbeenpreparedingoodfaith,howevernorepresentation,warranty,assuranceorundertaking(expressorimplied)isorwillbemade,a
3、ndnoresponsibilityorliabilityisorwillbeacceptedbyBSIinrelationtotheadequacy,accuracy,completenessorreasonablenessofthispublication.Allandanysuchresponsibilityandliabilityisexpresslydisclaimedtothefullextentpermittedbythelaw.Thispublicationisprovidedasis,andistobeusedattherecipientsownrisk.Therecipie
4、ntisadvisedtoconsiderseekingprofessionalguidancewithrespecttoitsuseofthispublication.Thispublicationisnotintendedtoconstituteacontract.Usersareresponsibleforitscorrectapplication.TheBritishStandardsInstitution2025PublishedbyBSIStandardsLimited2025ISBN9780539270280ICS19.100CompliancewithaBritishStand
5、ardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon30June2025.Amendments/corrigendaissuedsincepublicationDateTextaffectedEUROPEANSTANDARDNORMEEUROPEENNEEuropaischenormBSENISO16827:2025ENISO16827June2025Essaisnondestru
6、ctifs-Controleparultrasons-Caracterisationetdimensionnementdesdiscontinuites(ISO16827:2025)ZerstorungsfreiePriifung-Ultraschallprufung-BeschreibungundGroEenbestimmungvonInhomogenitaten(ISO16827:2025)ICS19.100SupersedesENISO16827:2014EnglishVersionNon-destructivetesting-Ultrasonictesting-Characteriza
7、tionandsizingofdiscontinuitiesISO16827:2025ThisEuropeanStandardwasapprovedbyCENon7June2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferenc
8、esconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENE
9、LECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Rep
10、ublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.富EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels2025CENAllrightsofexploitationinanyformand
11、byanymeansreservedRef.No.ENISO16827:2025EworldwideforCENnationalMembers.EuropeanforewordThisdocument(ENISO16827:2025)hasbeenpreparedbyTechnicalCommitteeISO/TC135NondestructivetestingincollaborationwithTechnicalCommitteeCEN/TC13811Non-destructivetesting”thesecretariatofwhichisheldbyAFNOR.ThisEuropean
12、Standardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyDecember2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyDecember2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CEN
13、shallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisdocumentsupersedesENISO16827:2014.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCEN-CENELECInternalRegulat
14、ions,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,
15、RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandtheUnitedKingdom.EndorsementnoticeThetextofISO16827:2025hasbeenapprovedbyCENasENISO16827:2025withoutanymodification.ContentsPageForewordivIntroductionv1 Scope12 Normativereferences13 Termsanddefinitions14 P
16、rinciplesofcharacterizationofdiscontinuities14.1 General14.2 Requirementsforsurfacecondition25 Pulse-echotechniques25.1 General25.2 Locationofdiscontinuity25.3 Orientationofdiscontinuity35.4 Assessmentofmultipleindications35.5 Shapeofdiscontinuity45.5.1 Simpleclassification45.5.2 Detailedclassification45.6 Maximumechoh
