Designation:D5284−09(Reapproved2017)StandardTestMethodforSequentialBatchExtractionofWastewithAcidicExtractionFluid1ThisstandardisissuedunderthefixeddesignationD5284;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodprovidesaprocedureforthesequentialleachingofawastecontainingatleast5%drysolidsinordertogeneratesolutionstobeusedtodeterminetheconstituentsleachedunderthespecifiedtestingconditions.1.2Thistestmethodcallsfortheshakingofaknownweightofwastewithacidicextractionfluidofaspecifiedcompositionaswellastheseparationoftheliquidphaseforanalysis.ThepHoftheextractionfluidistoreflectthepHofacidicprecipitationinthegeographicregioninwhichthewastebeingtestedistobedisposed.Theprocedureisconductedtentimesinsequenceonthesamesampleofwaste,anditgeneratestensolutions.1.3Thistestmethodisintendedtodescribetheprocedureforperformingsequentialbatchextractionsonly.Itdoesnotdescribealltypesofsamplingandanalyticalrequirementsthatmaybeassociatedwithitsapplication.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,healthandenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D75/D75MPracticeforSamplingAggregatesD420GuidetoSiteCharacterizationforEngineeringDesignandConstructionPurposes(Withdrawn2011)3...
