Designation:D6385−99(Reapproved2011)StandardTestMethodforDeterminingAcidExtractableContentinActivatedCarbonbyAshing1ThisstandardisissuedunderthefixeddesignationD6385;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodistobeusedfordeterminationoftheacidextractablecontentofasampleofactivatedcarbon.Thistestmethodpresupposestheexistenceofsubstancesotherthancarbontobepresentwithactivatedcarbonbutdoesnotpurporttoaddressoridentifythosesubstanceswhichmaybepresent.ThistestmethodshouldbeapplicabletoanyforminwhichactivatedcarbonmayexistandrequirestheperformanceofTestMethodD2866.1.2Thistestmethodrequirestheuseofconcentratedhydrochloricacid,whichshouldbeusedinanappropriateandsafemanner,witheyeprotection,skinprotectionandhandlingcarriedoutinaproperlyoperatingfumehood.TheproperuseofamufflefurnaceisaddressedinTestMethodD2866.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminestheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD2866TestMethodforTotalAshContentofActivatedCarbonD2867TestMethodsforMoistureinActivatedCarbonE300PracticeforSamplingIndustrialChemicals3.SummaryofTestMethod3.1Thepercentacidextractablecontentofanactivatedcarbonsampleisdeterminedbythedifferencebetweenthepercentmassoftotalashofasampleandthepercentmassoftotalashofasamplewhichhasbeenacidextracted.4.SignificanceandUse4.1Thequantitativedeterminationofacidextractablecon-tentisusefulinevaluatingactivatedcarbonsamplesthatcontainacidsolubleimpurities.Theseacidsolubleimpuritiescan...
