Designation:E1698−95(Reapproved2010)StandardPracticeforTestingElectrolyticConductivityDetectors(ELCD)UsedinGasChromatography1ThisstandardisissuedunderthefixeddesignationE1698;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoverstestingtheperformanceofanelectrolyticconductivitydetector(ELCD)usedasthedetectioncomponentofagaschromatographicsystem.1.2Thispracticeisdirectlyapplicabletoelectrolyticcon-ductivitydetectorsthatperformachemicalreactiononagivensampleoveranickelcatalystsurfaceunderoxidizingorreducingconditionsandemployascrubber,ifneeded,toremoveinterferences,deionizedsolventtodissolvethereac-tionproducts,andaconductivitycelltomeasuretheelectro-lyticconductivityofionizedreactionproducts.1.3Thispracticecoverstheperformanceofthedetectoritself,independentlyofthechromatographiccolumn,intermsthattheanalystcanusetopredictoverallsystemperformancewhenthedetectoriscoupledtothecolumnandotherchro-matographicsystemcomponents.1.4Forgeneralgaschromatographicprocedures,PracticeE260shouldbefollowedexceptwherespecificchangesarerecommendedhereinfortheuseofanelectrolyticconductivitydetector.FordefinitionsofgaschromatographyanditsvarioustermsseePracticeE355.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E260PracticeforPackedColumnGasChromatographyE355PracticeforGasChromatographyTermsandRelation-ships3.SignificanceandUse3.1AlthoughitispossibletoobserveandmeasureeachoftheseveralcharacteristicsoftheELCDunderdifferentanduni...
