Designation:D4793−09StandardTestMethodforSequentialBatchExtractionofWastewithWater1ThisstandardisissuedunderthefixeddesignationD4793;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodisaprocedureforthesequentialleachingofawastecontainingatleastfive%solidstogeneratesolutionstobeusedtodeterminetheconstituentsleachedunderthespecifiedtestingconditions.1.2Thistestmethodcallsfortheshakingofaknownweightofwastewithwaterofaspecifiedpurityandtheseparationoftheaqueousphaseforanalysis.Theprocedureisconductedtentimesinsequenceonthesamesampleofwasteandgeneratestenaqueoussolutions.1.3Thistestmethodisintendedtodescribetheprocedureforperformingsequentialbatchextractionsonly.Itdoesnotdescribealltypesofsamplingandanalyticalrequirementsthatmaybeassociatedwithitsapplication.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D75PracticeforSamplingAggregatesD420GuidetoSiteCharacterizationforEngineeringDesignandConstructionPurposes(Withdrawn2011)3D653TerminologyRelatingtoSoil,Rock,andContainedFluidsD1129TerminologyRelatingtoWaterD1193SpecificationforReagentWaterD2216TestMethodsforLaboratoryDeterminationofWater(Moisture)ContentofSoilandRockbyMassD2234/D2234MPracticeforCollectionofaGrossSampleofCoalD2777PracticeforDeterminationofPrecisionandBiasofApplicableTestMethodsofCommitteeD19onWaterD3370PracticesforSamplingWaterfromClosedConduits3.Terminology3.1Definitions:3.1.1Fordefinitionsoftermsusedinthistestmethod,seeTerminologyD1129.3.2Sy...
