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1、RECOMMENDEDPRACTICEISA–RP92.0.02,PartII–1998Installation,Operation,andMaintenanceofToxicGas-DetectionInstruments:HydrogenSulfideApproved15April1998TMISATheInstrumentation,–Systems,andAutomationSocietyISARP92.0.02,PartII1998Installation,Operation,andMaintenanceofToxicGasDet
2、ectionInstruments:HydrogenSulfideISBN:1-55617-679-1Copyright©1998bytheInstrumentSocietyofAmerica.Allrightsreserved.PrintedintheUnitedStatesofAmerica.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans(electronic,mechanical,pho
3、tocopying,recording,orotherwise),withoutthepriorwrittenpermissionofthepublisher.ISA67AlexanderDriveP.O.Box12277ResearchTrianglePark,NorthCarolina27709PrefaceThispreface,aswellasallfootnotesandannexes,isincludedforinformationalpurposesandisnotpartofISA-RP92.0.02,PartII-1998
4、.ThisRecommendedPracticehasbeenpreparedaspartoftheserviceofISA,theinternationalsocietyformeasurementandcontrol,towardagoalofuniformityinthefieldofinstrumentation.Tobeofrealvalue,thisdocumentshouldnotbestaticbutshouldbesubjecttoperiodicreview.Towardthisend,theSocietywelcome
5、sallcommentsandcriticismsandasksthattheybeaddressedtotheSecretary,StandardsandPracticesBoard;ISA;67AlexanderDrive;P.O.Box12277;ResearchTrianglePark,NC27709;Telephone(919)990-9227;Fax(919)549-8288;Internet:INFO@ISA.ORG.TheISAStandardsandPracticesDepartmentisawareofthegrowin
6、gneedforattentiontothemetricsystemofunitsingeneral,andtheInternationalSystemofUnits(SI)inparticular,inthepreparationofinstrumentationstandards,recommendedpractices,andtechnicalreports.TheDepartmentisfurtherawareofthebenefitstoUSAusersofISAstandardsofincorporatingsuitablere
7、ferencestotheSI(andthemetricsystem)intheirbusinessandprofessionaldealingswithothercountries.Towardthisend,thisDepartmentwillendeavortointroduceSI-acceptablemetricunitsinallnewandrevisedstandards,recommendedpractices,andtechnicalreportstothegreatestextentpossible.Standardfo
8、rUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem,publishedbytheAmericanSocie
