Designation:E1947−98(Reapproved2014)StandardSpecificationforAnalyticalDataInterchangeProtocolforChromatographicData1ThisstandardisissuedunderthefixeddesignationE1947;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversastandardizedformatforchromatographicdatarepresentationandasoftwarevehicletoeffectthetransferofchromatographicdatabetweeninstrumentdatasystems.Thisspecificationprovidesprotocoldesignedtobenefitusersofanalyticalinstrumentsandincreaselaboratoryproductivityandefficiency.1.2Theprotocolinthisspecificationprovidesastandard-izedformatforthecreationofrawdatafilesorresultsfiles.Thisstandardformathastheextension“.cdf”(derivedfromNetCDF).Thecontentsofthefileincludetypicalheaderinformationlikeinstrument,column,detector,andoperatordescriptionfollowedbyraworprocesseddata,orboth.Oncedatahavebeenwrittenorconvertedtothisprotocol,theycanbereadandprocessedbysoftwarepackagesthatsupporttheprotocol.1.3ThesoftwaretransfervehicleusedfortheprotocolinthisspecificationisNetCDF,whichwasdevelopedbytheUnidataProgramandisfundedbytheDivisionofAtmosphericSciencesoftheNationalScienceFoundation.21.4Theprotocolinthisspecificationisintendedto(1)transferdatabetweenvariousvendors’instrumentsystems,(2)provideLIMScommunications,(3)linkdatatodocumentprocessingapplications,(4)linkdatatospreadsheetapplications,and(5)archiveanalyticaldata,oracombinationthereof.Theprotocolisaconsistent,vendorindependentdataformatthatfacilitatestheanalyticaldatainterchangefortheseactivities.1.5Theprotocolconsistsof:1.5.1Thisspecificationonchromatographicdata,whichgivesthefulldefinitionsforeachoneofthegenericchromato-graphicdataelementsusedinimplementationoftheprotocol.Itdefinestheanalyticalinformationcategories,whichareaconvenientwayforsortinganalyticaldataelementstomakethem...