Designation:D5029−98(Reapproved2014)StandardTestMethodforWaterSolublesinActivatedCarbon1ThisstandardisissuedunderthefixeddesignationD5029;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthewatersolublecontentof(unused)granularandpowderedactivatedcarbons.Watersolublesarematerialsthatcanbeextractedbydistilledwaterunderrefluxconditionsandareexpressedasapercentageofdrycarbonweight.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1193SpecificationforReagentWaterD2652TerminologyRelatingtoActivatedCarbonD2867TestMethodsforMoistureinActivatedCarbonD3838TestMethodforpHofActivatedCarbonE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE300PracticeforSamplingIndustrialChemicals3.Terminology3.1Definitions—TermsrelatingtothisstandardaredefinedinTerminologyD2652.4.SummaryofTestMethod4.1AknownweightofactivatedcarbonisplacedintoarefluxapparatuswithTypeIIreagentwater(seeSpecificationD1193).Themixtureisrefluxedfor15minunderspecifiedconditions.ThisextractionisperformedusingthemethodandapparatusdescribedinTestMethodD3838.Afterextraction,thecarbonisseparatedbyfiltrationandanaliquotofthefiltrateisevaporatedtodryness.Watersolublesaredeterminedbyweighingthedryresidueandexpressingtheresultasapercentageofthedrycarbonweight.5.SignificanceandUse5.1Incertainapplications,theash,color,conductivity,orpHofthefinishedactivatedcarbonproductmaybeinfluencedbythequantityofwatersolublesitcontains.Thiswater...
