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1、BRITISHSTANDARDBSIEC61511-3:2003Functionalsafety—Safetyinstrumentedsystemsfortheprocessindustrysector—Part3:Guidanceforthedeterminationoftherequiredsafetyintegritylevels--``,,-`-`,,`,,`,`,,`---ICS25.040.01
2、CopyrightBritishStandardsInstitutionProvidedbyIHSunderlicensewithBSINoreproductionornetworkingpermittedwithoutlicensefromIHSNotforResaleBSIEC61511-3:2003NationalforewordThisBritishStandardreproducesverbatimIEC61511-3:2003andimplementsitastheUKnationalstandard.TheUKpa
3、rticipationinitspreparationwasentrustedbyTechnicalCommitteeGEL/65,Measurementandcontrol,toSubcommitteeGEL/65/1,Systemsconsiderations,whichhastheresponsibilityto:—aidenquirerstounderstandthetext;—presenttotheresponsibleinternational/Europeancommitteeanyenquiriesonthei
4、nterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;—monitorrelatedinternationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhich
5、implementinternationalpublicationsreferredtointhisdocumentmaybefoundintheBSICatalogueunderthesectionentitled“InternationalStandardsCorrespondenceIndex”,orbyusingthe“Search”facilityoftheBSIElectronicCatalogueorofBritishStandardsOnline.Thispublicationdoesnotpurporttoin
6、cludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.--``,,-`-`,,`,,`,`,,`---ThisBritishStandardwaspublishedundertheauthoritySummaryofpagesoftheStandardsP
7、olicyandStrategyCommitteeonThisdocumentcomprisesafrontcover,aninsidefrontcover,theIECtitlepage,30April2003pages2to53andabackcover.TheBSIcopyrightdatedisplayedinthisdocumentindicateswhenthedocumentwaslastissued.AmendmentsissuedsincepublicationAmd.No.DateComments©BSI30
8、April2003ISBN0580417522CopyrightBritishStandardsInstitutionProvidedbyIHSunderlicensewithBSINoreproductionornetworkingpermittedwitho
