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1、AATCCTestMethod20A-2011FiberAnalysis:QuantitativeDevelopedin1957byAATCCCommitteesentationofthenominalfibercontentofStandardTerminology(locatedelsewhereRA24;revised1958,1959,1975,1995,enduseitemssuchasgarments,moistureinthisTECHNICALMANUAL).2000,2004,2005,2007,2008,2010,regainistypicallyaddedbac
2、ktobonedry2011;reaffirmed1971,1978,1981,numbersgenerated.ASTMD1909,Stan-4.SafetyPrecautions1989;editoriallyrevised1980,1982dardTableofCommercialMoistureRe-NOTE:Thesesafetyprecautionsare(newtitle),1985,2002;2009.RelatedgainsforTextileFibers,canbeusedforforinformationpurposesonly.Thepre-toISO1775
3、1and1833andIWTO58.thispurpose.cautionsareancillarytothetestingproce-2.3Theprocedurefordeterminingfi-duresandarenotintendedtobeallinclu-bercompositionbymechanicalsepara-1.PurposeandScopetionisapplicabletothosetextilessive.Itistheuser’sresponsibilitytousesafeandpropertechniquesinhandling1.1Thisme
4、thodpresentsindividualwhereinthedifferentfibersmakingupitsmaterialsinthistestmethod.Manufac-proceduresforthequantitativedetermi-compositionaresegregatedinseparateturersMUSTbeconsultedforspecificnationofmoisturecontent,nonfibrousyarns,orplies,inthetextileproduct.detailssuchasmaterialsafetydatash
5、eetscontentandfibercompositionoftextiles.2.4Thechemicalproceduresforfiberandothermanufacturer’srecommenda-1.2Theproceduresforthedetermina-compositiondescribedhereinareapplica-tions.AllOSHAstandardsandrulestionoffibercompositionincludeme-bletomostofthecurrent,commercialmustalsobeconsultedandfoll
6、owed.chanical,chemicalandmicroscopicalproductionfiberswithineachgeneric4.1Goodlaboratorypracticesshouldmethods.Theyareapplicabletoblendsofclasslisted.Knownexceptionsarenotedbefollowed.Wearsafetyglassesinallthefollowinggenericclasses:inTableII.However,theremaybein-laboratoryareas.stancesinwhicha
7、methodmaynotbeNaturalFibersMan-MadeFibersfullyadequateforanewlydevelopedfi-4.2Allchemicalsshouldbehandledwithcare.CottonAcetateberfallingwithinoneofthelistedgenericHairAcrylicclassesandforre-usedand/orphysically4.3Performthesoxhle
