BS EN 10247-2007 使用标准图片对钢的非金属夹杂物含量的显微图检验

BRITISHSTANDARDBSEN10247:2007Micrographicexaminationofthenon-metallicinclusioncontentofsteelsusingstandardpicturesTheEuropeanStandardEN10247:2007hasthestatusofaBritishStandardICS77.040.99  BSEN10247:2007ThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31May2007©BSI2007ISBN9780580506574NationalforewordThisBritishStandardwaspublishedbyBSI.ItistheUKimplementationofEN10247:2007.ItsupersedesDDENV10247:1998whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeISE/72,Methodsofphysicalandmetallographictesting.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.AmendmentsissuedsincepublicationAmd.No.DateCommentsEUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN10247April2007ICS77.040.99SupersedesENV10247:1998EnglishVersionMicrographicexaminationofthenon-metallicinclusioncontentofsteelsusingstandardpicturesDéterminationmicrographiquedelateneureninclusionsnon-métalliquesdesaciersàl'aided'images-typesMetallographischePrüfungdesGehaltesnichtmetallischerEinschlüsseinStählenmitBildreihenThisEuropeanStandardwasapprovedbyCENon13January2007.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2007CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN10247:2007:EEN10247:2007(E)2ContentsForeword..............................................................................................................................................................5Introduction.........................................................................................................................................................61Scope......................................................................................................................................................72Normativereferences............................................................................................................................73Principles................................................................................................................................................74Termsanddefinitions...........................................................................................................................84.1General....................................................................................................................................................84.2Proximity.................................................................................................................................................94.3Parameters.............................................................................................................................................94.4Classes.................................................................................................................................................104.5Others...................................................................................................................................................105Symbolsandabbreviations................................................................................................................116Sampling...............................................................................................................................................136.1General..................................................................................................................................................136.2Minimumreduction..............................................................................................................................136.3Sizeandlocationoftestarea.............................................................................................................136.4Numberofspecimens...