Designation:D3558−08StandardTestMethodsforCobaltinWater1ThisstandardisissuedunderthefixeddesignationD3558;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthedeterminationofdissolvedandtotalrecoverablecobaltinwaterandwastewater2byatomicabsorptionspectrophotometry.Threetestmethodsareincludedasfollows:ConcentrationRangeSectionsTestMethodA—AtomicAbsorption,Direct0.1to10mg/L7to16TestMethodB—AtomicAbsorption,Chelation-Extraction10to1000µg/L17to26TestMethodC—AtomicAbsorption,GraphiteFurnace5to100µg/L27to361.2TestMethodAhasbeenusedsuccessfullywithreagentwater,potablewater,riverwater,andwastewater.TestMethodBhasbeenusedsuccessfullywithreagentwater,potablewater,riverwater,seawaterandbrine.TestMethodCwassuccess-fullyevaluatedinreagentwater,artificialseawater,riverwater,tapwater,andasyntheticbrine.Itistheanalyst’sresponsibilitytoensurethevalidityofthesetestmethodsforothermatrices.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see11.7.1,21.10,and23.10.2.ReferencedDocuments2.1ASTMStandards:3D858TestMethodsforManganeseinWaterD1066PracticeforSamplingSteamD1068TestMethodsforIroninWaterD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD1687TestMethodsforChromiuminWaterD1688TestMethodsforCopperinWaterD1691TestMethodsforZincinWaterD1886TestMethodsforNickelinWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduitsD3557Te...
