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《ISA-75.01-1985 (R1995) Flow Equations for Sizing Control Valves》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、STANDARDISA–75.01–1985(R1995)FormerlyISA–S75.01–1985(R1995)FlowEquationsforSizingControlValvesReaffirmed18October1995TMISATheInstrumentation,–Systems,andAutomationSocietyISA-75.01-1985(R1995),FlowEquationsforSizingControlValvesISBN0-87664-899-5Copyright¤1985bytheIn
2、strumentSocietyofAmerica.Allrightsreserved.PrintedintheUnitedStatesofAmerica.Nopartofthispublicationmaybereproduced,storedinaretrievalsystem,ortransmittedinanyformorbyanymeans(electronic,mechanical,photocopying,recording,orotherwise),withoutthepriorwrittenpermissio
3、nofthepublisher.ISA67AlexanderDriveP.O.Box12277ResearchTrianglePark,NorthCarolina27709PrefaceThispreface,aswellasallfootnotesandannexes,isincludedforinformationalpurposesandisnotpartofISA-75.01-1985(R1995).ThisstandardhasbeenpreparedaspartoftheserviceoftheISA,thein
4、ternationalsocietyformeasurementandcontrol,towardagoalofuniformityinthefieldofinstrumentation.Tobeofrealvalue,thisdocumentshouldnotbestatic,butshouldbesubjecttoperiodicreview.Towardthisend,theSocietywelcomesallcommentsandcriticisms,andasksthattheybeaddressedtotheSe
5、cretary,StandardsandPracticesBoard,ISA,67AlexanderDrive,P.O.Box12277,ResearchTrianglePark,NC27709,Telephone(919)990-9227;Fax(919)549-8288;E-mail:standards@isa.org.TheISAStandardsandPracticesDepartmentisawareofthegrowingneedforattentiontothemetricsystemofunitsingene
6、ral,andtheInternationalSystemofUnits(SI)inparticular,inthepreparationofinstrumentationstandards,recommendedpractices,andtechnicalreports.TheDepartmentisfurtherawareofthebenefitstoUSAusersofISAstandardsofincorporatingsuitablereferencestotheSI(andthemetricsystem)inth
7、eirbusinessandprofessionaldealingswithothercountries.Towardthisend,thisDepartmentwillendeavortointroduceSI-acceptablemetricunitsinallnewandrevisedstandardstothegreatestextentpossible.TheMetricPracticeGuide,whichhasbeenpublishedbytheInstituteofElectricalandElectroni
8、csEngineersasANSI/IEEEStd268-1992,andfuturerevisions,willbethereferenceguidefordefinitions,symbols,abbreviations,andconversionfactors.Itisthepoli
