Designation:D1997−20StandardTestMethodforLaboratoryDeterminationoftheFiberContentofPeatandOrganicSoilsbyDryMass1ThisstandardisissuedunderthefixeddesignationD1997;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodcoversthelaboratorydeterminationofthefibercontentofpeatandorganicsoilsbydrymass.ClassificationD4427providesthemethodologytoclassifypeatasitisusedinthisstandard.1.2Piecesofplantmaterialsuchasrootsorwood,largerthan20mminsmallestdimensionarenotconsideredfibers.1.3Becausethistestmethodissimpleanddoesnotneedsophisticatedequipmentinordertobeperformed,itisespe-ciallyrecommendedforroutinereconnaissanceworkwherelargenumbersofsamplesneedtobetestedandmineralcontentsarelow.1.4Units—ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.AlternatesievedesignationsinparenthesesareasprovidedinSpecificationE11.1.5AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.7Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D653TerminologyRelatingtoSoil,Rock,andContainedFluidsD2216TestMethodsforLaboratoryDeterminationofWater(Moisture)ContentofSoilandRockbyMassD2974TestMethodsforDeterminingtheWater(Moisture)Content,AshContent,...
