ASTMDI794890759510002324b4W7AnAmerkanNationalStandardModiftcatknofTechnlcaiAssodatlonAMERICANSOCIETVFORTESTINOANDMATERIALS1016RrerGI.,PhWphk,PI.10103Ifno(lislodInIhrcumcomMmdinda,WHiwuinihrmxledttmn.41)Designation:D1794-89RepprinlsdImintheAnnuntBooko(ASTMStandards,CopyrighiStandardTestMethodforAlcohol-BenzeneSolubleMatterinCellulose'ThisstandardisissuedunderthefuteddesignationD1794;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastnapprov&Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofalcohol-benzenesolublematterincelluloseandisapplicabletodis-solving-typecellulosepulpspreparedfromcottonorwood,1.2Thisstandardmayinvolvehazardousmaterials,oper-ations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafityproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafityandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocument2.1ASTMStandard:D1348TestMethodsforMoistureinCellulose22.2OtherDocuments:OccupationalSafetyandHealthStandardsandInterpreta-tions,Parti91033.SummaryofTestMethod3.1Asampleisextractedwitha1+2alcohol-benzenesolutioninaSoxhletapparatusasameasureofthewaxes,fats,resins,andoilspresent.4.SignificanceandUse4.1Thistestmethodprovidesanestimateofwaxes,lipids,resins,andotherorganicsolubleresiduesthatwerenotremovedfromthefiberduringthepulpingprocess.5.Apparatus5.1ExtractionApparatus,Soxhlet,consistingofa300-mLflask,anextractorwitha50by250-mmbody,andaHopkinstypecondenser.5.2ExtractionThimble,either(I)standardthicknesspa-per,43by123mrn,(2)Alundum,45by127mm,medium-porosity,or(3)glasswithcoarse-porosityfritted-glassdisk,45by130mm.5.3ExtractionHeateralrdSupport,heaterwiththree-heatswitches.5.4Oven,gravity-convection,maintainedat105f3°C.ThistestmethodisunderthejurisdictionofASTMCommitteeD...
