Designation:D6385−22StandardTestMethodforDeterminingAcid-ExtractableContentinActivatedCarbonbyAshing1ThisstandardisissuedunderthefixeddesignationD6385;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodistobeusedfordeterminationoftheacid-extractablecontentofasampleofactivatedcarbon.Thistestmethodpresupposestheexistenceofsubstancesotherthancarbontobepresentwithactivatedcarbonbutdoesnotpurporttoaddressoridentifythosesubstanceswhichmaybepresent.ThistestmethodshouldbeapplicabletoanyforminwhichactivatedcarbonmayexistandrequirestheperformanceofTestMethodD2866.1.2Thistestmethodrequirestheuseofconcentratedhydrochloricacid,whichshouldbeusedinanappropriateandsafemanner,witheyeprotection,skinprotection,andhandlingcarriedoutinaproperlyoperatingfumehood.TheproperuseofamufflefurnaceisaddressedinTestMethodD2866.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD2866TestMethodforTotalAshContentofActivatedCarbonD2867TestMethodsforMoistureinActivatedCarbonE300PracticeforSamplingIndustrialChemicals3.SummaryofTestMethod3.1Thepercentacid-extractablecontentofanactivatedcarbonsampleisdeterminedbythediffe...