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1、AMERICANNATIONALSTANDARDANSI/ISA–75.25.01–2000TestProcedureforControlValveResponseMeasurementfromStepInputsApproved10January2001TMISATheInstrumentation,–Systems,andAutomationSocietyANSI/ISA-75.25.01-2000TestProcedureforControlValveResponseMeasurementfromStepInputsISBN:1-55617-742-9Copyright2
2、000byISA–TheInstrumentation,Systems,andAutomationSociety.Allrightsreserved.Notforresale.PrintedintheUnitedStatesofAmerica.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmitted,inanyformorbyanymeans(electronic,mechanical,photocopying,recording,orotherwise),withoutthepri
3、orwrittenpermissionofthePublisher.ISA67AlexanderDriveP.O.Box12277ResearchTrianglePark,NorthCarolina27709USA—3—ANSI/ISA–75.25.01–2000PrefaceThispreface,aswellasallfootnotesandannexes,isincludedforinformationpurposesandisnotpartofANSI/ISA-75.25.01-2000.Thestandardsreferencedwithinthisdocumentma
4、ycontainprovisionswhich,throughreferenceinthistext,constituterequirementsofthisdocument.Atthetimeofpublication,theeditionsindicatedwerevalid.Allstandardsaresubjecttorevision,andpartiestoagreementsbasedonthisdocumentareencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditionsofthest
5、andardsindicatedwithinthisdocument.MembersofIECandISOmaintainregistersofcurrentlyvalidInternationalStandards.ANSImaintainregistersofcurrentlyvalidU.S.NationalStandards.ThisdocumenthasbeenpreparedaspartoftheserviceofISA–TheInstrumentation,Systems,andAutomationSociety,towardagoalofuniformityint
6、hefieldofinstrumentation.Tobeofrealvalue,thisdocumentshouldnotbestaticbutshouldbesubjecttoperiodicreview.Towardthisend,theSocietywelcomesallcommentsandcriticismsandasksthattheybeaddressedtotheSecretary,StandardsandPracticesBoard;ISA;67AlexanderDrive;P.O.Box12277;ResearchTrianglePark,NC27709;T
7、elephone(919)549-8411;Fax(919)549-8288;E-mail:standards@isa.org.TheISAStandardsandPracticesDepartmentisawareofthegrowingneedforattentiontothemetricsystemofunitsingeneral,andtheInternationalSystemofUnits(SI)inparticular,inthepreparationofinstr
