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1、AMERICANNATIONALSTANDARDANSI/ISA–92.04.01,PartI–1996FormerlyANSI/ISA–S92.04.01,PartI–1996PerformanceRequirementsforInstrumentsUsedtoDetectOxygen-Deficient/Oxygen-EnrichedAtmospheresApproved15May1996TMISATheInstrumentation,–Systems,andAutomationSocietyANSI/ISA
2、-92.04.01,PartI-1996,PerformanceRequirementsforInstrumentsUsedToDetectOxygen-Deficient/Oxygen-EnrichedAtmospheresISBN:1-55617-619-8CopyrightË1996bytheInstrumentSocietyofAmerica.Allrightsreserved.PrintedintheUnitedStatesofAmerica.Nopartofthispublicationmaybere
3、produced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans(electronic,mechanical,photocopying,recording,orotherwise),withoutthepriorwrittenpermissionofthepublisher.ISA67AlexanderDriveP.O.Box12277ResearchTrianglePark,NorthCarolina27709PrefaceThispref
4、ace,allfootnotes,andannexesareincludedforinformationalpurposesandarenotapartofANSI/ISA-92.04.01,PartI-1996.ThisStandardhasbeenpreparedasapartoftheserviceofISA,theinternationalsocietyformeasurementandcontrol,towardagoalofuniformityinthefieldofinstrumentation.T
5、obeofrealvalue,thisdocumentshouldnotbestaticbutshouldbesubjecttoperiodicreview.Towardthisend,theSocietywelcomesallcommentsandcriticismsandasksthattheybeaddressedtotheStandardsandPracticesBoardSecretary;ISA;67AlexanderDrive;P.O.Box12277;ResearchTrianglePark,NC
6、27709;Telephone(919)549-8411;Fax(919)549-8288;Internet:standards@isa.org.TheISAStandardsandPracticesDepartmentisawareofthegrowingneedforattentiontothemetricsystemofunitsingeneral,andtheInternationalSystemofUnits(SI)inparticular,inthepreparationofinstrumentati
7、onstandards,recommendedpractices,andtechnicalreports.TheDepartmentisfurtherawareofthebenefitstoUSAusersofISAStandardsofincorporatingsuitablereferencestotheSI(andthemetricsystem)intheirbusinessandprofessionaldealingswithothercountries.Towardthisend,thisDepartm
8、entwillendeavortointroduceSI-acceptablemetricunitsasoptionalalternativestoEnglishunitsinallnewandrevisedstandards,recommendedpractices,andtechnicalreportstothegreatestextentpossible.TheMe
