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1、dS84.01DraftStandardApplicationofSafetyInstrumentedSystemsfortheProcessIndustriesDraft18Thisdocumentisadraftthatrepresentsworkbein(December1995)gdonebyanISAStandardsCommitteeleadingtothedevelopmentofanISAStandard,RecommendedPracticeorTechnicalReport.Itisfurnishedforrevi
2、ewpurposesonly.ThereaderiscautionedthatthisdocumenthasnotbeenapprovedandcannotbepresumedtoreflectthepositionofISAoranyothercommittee,society,orgroup.Althougheveryefforthasbeenmadetoensureaccuracy,neitherISA,membersoftheS&PDepartment,northeiremployersshallbeheldliablefor
3、errorsorlimitations.Participationofindividualsinthedevelopmentofthisproposedstandardshallnotbeconstruedasanunreservedendorsementoftheproposedstandardbytheindividualsortheemployersoftheseindividuals.Thisdraftmaybereproducedinlimitedquantitiesforreviewpurposesonly.TheInte
4、rnationalSocietyforMeasurementandControlISA-dS84.01,ApplicationofSafetyInstrumentedSystemsfortheProcessIndustriesISBN:Copyright©1995bytheInstrumentSocietyofAmericaandControl.Allrightsreserved.PrintedintheUnitedStatesofAmerica.Nopartofthispublicationmaybereproduced,store
5、dinaretrievalsystem,ortransmitted,inanyformorbyanymeans(electronic,mechanical,photocopying,recording,orotherwise),withoutthepriorwrittenpermissionofthePublisher.ISA67AlexanderDriveP.O.Box12277ResearchTrianglePark,NorthCarolina27709PrefaceThisprefaceaswellasallfootnotes,
6、annexesandTechnicalReport84.02(TR84.02)areincludedforinformationalpurposesandisnotpartofISA-dS84.01.ThisdraftstandardhasbeenpreparedaspartoftheserviceofISA—TheInternationalSocietyforMeasurementandControl—towardagoalofuniformityinthefieldofinstrumentation.Tobeofrealvalue
7、,thisdocumentshouldnotbestaticbutshouldbesubjecttoperiodicreview.Towardthisend,theSocietywelcomesallcommentsandcriticismsandasksthattheybeaddressedtotheSecretary,StandardsandPracticesBoard;ISA;67AlexanderDrive;P.O.Box12277;ResearchTrianglePark,NC27709;Telephone(919)990-
8、9227;Fax(919)549-8288;Internet:INFO@ISA.ORG.TheISAStandardsandPracticesDepartmentisawareofthegrowingneedforatt
