BS EN 755-8 2016 英文版

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1、BSEN755-8:2016BSIStandardsPublicationAluminiumandaluminiumalloys—Extrudedrod/bar,tubeandprofilesPart8:Portholetubes,tolerancesondimensionsandformWB11885_BSI_StandardCovs_2013_AW.indd115/05/201315:06BSEN755-8:2016BRITISHSTANDARDNationalforewordThisBritishStandardistheUKimplementationofEN7

2、55-8:2016.ItsupersedesBSEN755-8:2008whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeNFE/35,Lightmetalsandtheiralloys.Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessary

3、provisionsofacontract.Usersareresponsibleforitscorrectapplication.©TheBritishStandardsInstitution2016.PublishedbyBSIStandardsLimited2016ISBN9780580910043ICS77.150.10CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.ThisBritishStandardwaspublishedundertheauthorityofth

4、eStandardsPolicyandStrategyCommitteeon30June2016.AmendmentsissuedsincepublicationDateTextaffectedBSEN755-8:2016EUROPEANSTANDARDEN755-8NORMEEUROPÉENNEEUROPÄISCHENORMJune2016ICS77.150.10SupersedesEN755-8:2008EnglishVersionAluminiumandaluminiumalloys-Extrudedrod/bar,tubeandprofiles-Part8:Po

5、rtholetubes,tolerancesondimensionsandformAluminiumetalliagesd'aluminium-Barres,tubesetAluminiumundAluminiumlegierungen-profilésfilés-Partie8:Tubesfilésàpont,tolérancesStranggepressteStangen,RohreundProfile-Teil8:surdimensionsetformeMitKammerwerkzeugstranggepressteRohre,GrenzabmaßeundForm

6、toleranzenThisEuropeanStandardwasapprovedbyCENon11April2016.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnat

7、ionalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtoth