Designation:D5896−96(Reapproved2012)StandardTestMethodforCarbohydrateDistributionofCellulosicMaterials1ThisstandardisissuedunderthefixeddesignationD5896;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofthecarbo-hydratecompositionofcellulosicmaterialssuchasgroundwoodmeal,chemicallyrefinedpulp,mechanicalpulps,brown-stocks,andplantexudates(gums)byionchromatography.Thistestmethodissuitableforrapid,routinetestingoflargenumbersofsampleswithhighaccuracyandprecision.Forareviewofthistechnique,seeLee(1).21.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forhazardstate-ment,seeSection8.2.ReferencedDocuments2.1ASTMStandards:3D1193SpecificationforReagentWaterD1695TerminologyofCelluloseandCelluloseDerivatives3.Terminology3.1Forstandardterminologyofcelluloseandcellulosederivatives,seeTerminologyD1695.3.2Abbreviations:3.2.1IC—ionchromatography,3.2.2SPE—solidphaseextraction,3.2.3PAD—pulsedamperometricdetector,3.2.4PED—pulsedelectrochemicaldetector,3.2.5mM—millimolar.4.SummaryofTestMethod4.1ICanalysisofcellulosicsrequiresthefollowingopera-tions:(1)samplepreparation,(2)totalhydrolysis,(3)dilution,(4)SPE,(5)ionchromatographicanalysis,and(6)calibration/calculation.5.SignificanceandUse5.1Thistestmethodrequirestotalhydrolysisofcarbohy-dratematerialtomonosaccharides,andisthusapplicabletoanycellulosicorrelatedmaterialthatundergoessubstantialhydrolysis,includingcellulosederivativessuchascelluloseacetate.5.2Thecarbohydratecompositionofacellul...
