Designation:D1348−94(Reapproved2008)StandardTestMethodsforMoistureinCellulose1ThisstandardisissuedunderthefixeddesignationD1348;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthedeterminationofmoistureincelluloseusingtwooven-dryingproceduresandoneKarlFischerprocedure.1.2Thetestproceduresappearinthefollowingorder:SectionsTestMethodA—SpecimenWeighedinOven4–10TestMethodB—SpecimenWeighedOutsideofOven11–17TestMethodC—KarlFischerMethod18–251.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.SignificanceandUse2.1Thesetestmethodsdeterminetheamountofmoisturecontainedinacellulosesamplewhichdeterminestheamountofbonedrycellulosepresentinasample.Theactualamountofcelluloseinasampleisanessentialentitywhenusingcelluloseasastartingmaterialfortheproductionofcellulosederiva-tives.3.Sampling3.1Celluloseinavarietyofformsissampledformoisture,andnosinglesetofdirectionscanbegiventhatisapplicabletoalltypesofcellulosematerial.Thefollowinggeneralconsiderationsshouldbeborneinmind.3.1.1Cellulose,eitherincompactform,suchaswood,sheetedpulporpaper,baledcottonorbaledstaplerayon,orinlooseformsuchassawdustorchips,mayhaveanappreciablydifferentmoisturecontentinsectionslyingrelativelyclosetogether.Inordertosecurerepresentativesamples,therefore,abulksampleshouldbemadeupofsmallportionstakenfromvariouspartsofthelotandhavingtheproperproportionofedgeandcentermaterial.3.1.2Exceptforthosesamplestakenin...
