Designation:D5173−15StandardGuideforOn-LineMonitoringofTotalOrganicCarboninWaterbyOxidationandDetectionofResultingCarbonDioxide1ThisstandardisissuedunderthefixeddesignationD5173;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoverstheselection,establishment,andapplicationofmonitoringsystemsforcarbonandcarboncompoundsbyon-line,automaticanalysis,andrecordingorotherwisesignalingofoutputdata.Thesystemchosenwilldependonthepurposeforwhichitisintended(forexample,regulatorycompliance,processmonitoring,ortoalerttheusertoadversetrends)andonthetypeofwatertobemonitored(lowpurityorhighpurity,withorwithoutsuspendedparticulates,purgeableorganics,orinorganiccarbon).Ifitistobeusedforregulatorycompliance,thetestmethodpublishedorreferencedintheregulationsshouldbeusedinconjunctionwiththisguideandotherASTMtestmethods.Thisguidecoverscarbonconcentrationsof0.05µg/Lto50000mg/L.Lowendsensitivityandquantitativeresultsmayvaryamonginstruments.Thisguidecoverstheon-linemeasurementtech-niqueslistedinTable1.Additionallaboratorytestmethodsareavailable:TestMethodsD4129,D4839,D5904,D6317,andD7573.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection9.2.ReferencedDocuments2.1ASTMStandards:2D1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduitsD3694PracticesforPreparationofSampleContainersandforPreserva...
