Designation:D513−11´1StandardTestMethodsforTotalandDissolvedCarbonDioxideinWater1ThisstandardisissuedunderthefixeddesignationD513;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—ThistestmethodwaschangededitoriallyinFebruary2012.1.Scope*1.1Thesetestmethodscoverthemeasurementoftotalordissolvedcarbondioxidepresentascarbondioxide(CO2),carbonicacid,bicarbonateion,andcarbonateioninwater:RangeSectionsTestMethodA(GasSensingElectrode)2to800mg/L8to15TestMethodB(CO2Evolution,CoulometricTitration)5to800mg/L16to241.2Carbondioxidemayalsobedetectedfromcarbonatespresentinparticulatesinsamples.1.3TestMethodAisapplicabletovariousnaturalwatersandbrines.1.4TestMethodBisapplicabletonaturalwaters,brines,andvariousindustrialwatersasdelineatedin16.4.1.5Itistheuser’sresponsibilitytoensurethevalidityofthesetestmethodsonwatersofuntestedmatrices.1.6Severaltestmethodswerediscontinuedfromthisstan-dardin1988.RefertoAppendixX1forhistoricalinformation.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1066PracticeforSamplingSteamD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD1293TestMethodsforpHofWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduitsD5847PracticeforWritingQualityControlSpecificationsforStandardTestMethodsforWaterAnalysisE200PracticeforPreparation,Standardization,andStorageofStandardandReagentSolutionsforChemicalAnalysis3.Termin...
