Designation:F1647−11AnAmericanNationalStandardStandardTestMethodsforOrganicMatterContentofAthleticFieldRootzoneMixes1ThisstandardisissuedunderthefixeddesignationF1647;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1ThesetestmethodscoverthedeterminationofthepercentorganicmatterofaputtinggreenrootzonemixtureusingalossonignitionmethodortheWalkleyBlackmethod.Thesetestmethodsareusefulforquantifyingtheorganicmattercontentofvolumeratiomixedrootzonemixes.TestMethodsD2974isrecommendedforpeatandotherorganicsoils.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse,northedisposalofhazardouswastethatmaybegenerated.Itistheresponsi-bilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregu-latorylimitationspriortouse.Foraspecificprecautionarystatement,see8.2.6.2.ReferencedDocuments2.1ASTMStandards:2D2974TestMethodsforMoisture,Ash,andOrganicMatterofPeatandOtherOrganicSoilsE177PracticeforUseoftheTermsPrecisionandBiasinASTMTestMethodsE691PracticeforConductinganInterlaboratoryStudytoDeterminethePrecisionofaTestMethod3.SummaryofTestMethods3.1MethodA—Organicmattercontentisdeterminedbylossonignition(LOI).3.2MethodB3—OrganicmattercontentisdeterminedbytheWalkley-Blackmethod;adichromateoxidationprocedurewherebythecolorintensityofthereactionproductisdeter-minedcolorimetrically.4.Apparatus—MethodA4.1Oven,capableofmaintainingaconstanttemperatureof10565°C.4.2Mufflefurnace,capableofproducingconstanttempera-turesof360610°C.4.3Evaporatingdishorcrucible,madeofhighsilicaorporcelainofnotlessthan10-mLcapacity.4.4Desiccator,4.5Aluminumfoil,heavyduty,and4.6Balance,sensitiveto0.001g.5.Apparatu...
