Designation:D1179−10StandardTestMethodsforFluorideIoninWater1ThisstandardisissuedunderthefixeddesignationD1179;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thesetestmethods2coverthedeterminationoffluorideioninwater.Thefollowingtwotestmethodsaregiven:SectionsTestMethodA—Distillation7to13TestMethodB—IonSelectiveElectrode14to211.2TestMethodAcoverstheaccuratemeasurementoftotalfluorideinwaterthroughisolationofthefluoridebydistillationandsubsequentmeasurementinthedistillatebyuseoftheionselectiveelectrode(ISE)method.Theprocedurecoverstherangefrom0.1to2.6mg/Loffluoride.1.3TestMethodBcoverstheaccuratemeasurementofsimplefluorideioninwaterbymeansofanionselectiveelectrode.Withthistestmethod,distillationiseliminatedbecausetheelectrodeisnotaffectedbytheinterferencescommontocolorimetricprocedures.Concentrationsoffluoridefrom0.1to1000mg/Lmaybemeasured.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecificprecautionarystatement,see12.1.2.1.6FormerTestMethodA,SPADNSPhotometricProcedure,wasdiscontinued.RefertoAppendixX1forhistoricalinformation.2.ReferencedDocuments2.1ASTMStandards:3D1066PracticeforSamplingSteamD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduitsD4127TerminologyUsedwithIon-SelectiveElectrodesD5810GuideforSpikingintoAqueousSampl...
