Designation:E1756−08(Reapproved2015)StandardTestMethodforDeterminationofTotalSolidsinBiomass1ThisstandardisissuedunderthefixeddesignationE1756;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONThetotalsolidscontentisusedtoadjustthemassofthebiomasssothatallanalyticalresultsmaybereportedonamoisture-freebasis.Totalsolidscontentmaybedeterminedbyovernightdryingat105°Cinaconvectionovenorwithaloss-on-dryingmoistureanalyzer.1.Scope1.1Thistestmethodcoversthedeterminationoftheamountoftotalsolidsremainingafterdryingasample.Materialssuitableforthisprocedureincludesamplespreparedinaccor-dancewithPracticeE1757andextractive-freematerialpre-paredinaccordancewithTestMethodE1690.Forparticulatewoodfuels,TestMethodE871shouldbeused.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E871TestMethodforMoistureAnalysisofParticulateWoodFuelsE1690TestMethodforDeterminationofEthanolExtrac-tivesinBiomassE1757PracticeforPreparationofBiomassforComposi-tionalAnalysis3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1oven-driedsolids—thesolidsremainingafterheatingthepreparedbiomassat105°Ctoconstantmass.Forthepurposesofthisprocedure,themoisturecontentofabiomasssampleisconsideredtobetheamountofmasslostduringthedryingofthesampleat105°Ctoconstantmass.Aninherenterrorofthisandanyoven-dryingprocedureisthatvolatilesubstancesotherthanwaterareremovedfromthesampleduringdrying.3.1.2preparedbiomass—thebiomassthathasbeenpro-cessedaccordingtoPracticeE...
