Designation:D7385−21StandardGuideforEstimatingCarbonSaturationbyTemperatureRiseUponImmersion1ThisstandardisissuedunderthefixeddesignationD7385;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisguidecoversthemeasurementofthetemperatureriseresultingfromtheheatofimmersionwhenaknownmassofaspecifiedorganicliquidisaddedtoasampleofactivatedcarbon.Ifthecarbonhasbeeninuseasanadsorbentandmaythereforebepartiallyorfullyexhausted,itsdegreeofsatura-tionmaybeestimatedbycomparingitstemperaturerisewiththatofanunusedsampleofthesameactivatedcarbon.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D2652TerminologyRelatingtoActivatedCarbonD2854TestMethodforApparentDensityofActivatedCarbon3.Terminology3.1TermsrelatedtothisguidearedefinedinTerminologyD2652.4.SummaryofGuide4.1Ameasuredvolumeofactivatedcarbonisaddedtoaknownvolumeofaselectedorganicliquidinacontainerprovidedwithmeanstomeasuretheliquidtemperature.Theapparatusissealedaftertheadditionofthecarbonandthemaximumriseintemperatureisrecorded.Thedegreeofsaturationofausedcarbonisestimatedbycomparingitstemperaturerisewiththatoftheoriginalunusedactivatedcarbonofequivalentmoisturecontent,measuredu...
