Designation:D7579−09(Reapproved2019)StandardTestMethodforPyrolysisSolidsContentinPyrolysisLiquidsbyFiltrationofSolidsinMethanol1ThisstandardisissuedunderthefixeddesignationD7579;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethoddescribesafiltrationprocedurefordeterminingthepyrolysissolidscontentofpyrolysisliquid.Itisintendedfortheanalysisofpyrolysisliquidwithallrangesofpyrolysissolidsconcentrations.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.MaterialSafetyDataSheetsareavailableforreagentsandmaterials.Reviewthemforhazardspriortousage.Forspecificwarningstatements,see7.2,7.3,and7.4.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D4057PracticeforManualSamplingofPetroleumandPetroleumProductsD4175TerminologyRelatingtoPetroleumProducts,LiquidFuels,andLubricantsD4177PracticeforAutomaticSamplingofPetroleumandPetroleumProducts2.2OtherStandards:3ESPOO2001Aguidetophysicalpropertycharacterisationofbiomass-derivedfastpyrolysisliquids3.Terminology3.1Definitions:3.1.1SeealsoTerminologyD4175.3.1.2char,n—finecarbonaceouspowderthatisseparatedfromthevaporsofbiomassduringpyrolysis.3.1.2.1Discussion—Pyrolysisliquidbiofuelcontainsuni-formlysuspendedcharatvaryingconcentration...
