Designation:D3697−12StandardTestMethodforAntimonyinWater1ThisstandardisissuedunderthefixeddesignationD3697;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthedeterminationofdissolvedandtotalrecoverableantimonyinwaterbyatomicabsorptionspectroscopy.21.2Thistestmethodisapplicableintherangefrom1to15µg/Lofantimony.Therangemaybeextendedbylessscaleexpansionorbydilutionofthesample.1.3Theprecisionandbiasdatawereobtainedonreagentwater,tapwater,saltwater,andtwountreatedwastewaters.Theinformationonprecisionandbiasmaynotapplytootherwaters.1.4ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemaremathematicalconversionsandmaynotbeexactequivalents;therefore,eachsystemshallbeusedinde-pendentlyoftheother.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduitsD4691PracticeforMeasuringElementsinWaterbyFlameAtomicAbsorptionSpectrophotometryD4841PracticeforEstimationofHoldingTimeforWaterSamplesContainingOrganicandInorganicConstituentsD5847PracticeforWritingQualityControlSpecificationsforStandardTestMethodsforWaterAnalysis3.Terminology3.1Definitions:Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyD1129.3.2DefinitionsofTermsSpecifictoThisStandard:3.2.1totalrecoverableantimony,n—anarbitraryanalyticaltermrelatingtoformsofantimonythataredeterminablebythedigesti...
