Designation:D2130−13StandardTestMethodforDiameterofWoolandOtherAnimalFibersbyMicroprojection1ThisstandardisissuedunderthefixeddesignationD2130;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversaprocedure,usingthemicroprojector,forthedeterminationoftheaveragefiberdiameterandthefiberdiametervariationonwoolandotheranimalfibers,suchasmohair,cashmere,alpaca,camel’shair,etc.(Note1)intheirvariousforms.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Themetricequivalentsofinch-poundunitsmaybeapproximate.NOTE1—Thistestmethodmayalsobeappliedtoanyfibershavingaroundcrosssectionandaccordinglymaybeusedmanytimesformelt-spunman-madefiberssuchaspolyamides,polyesters,andglass;alsoitmaybeappliedtoalimitednumberofpolyacrylicsandregeneratedcellulosetypefibers.ThevaluesgiveninAppendixX1fordensityandcorrectionfactors,however,applyonlytowoolandshouldnotbeusedforotherfibers.Forsuitablevaluesforthedensityofotherfibers,seeTable5inTestMethodsD629,QuantitativeAnalysisofTextiles.NOTE2—Insubsequentsectionsofthistestmethod,theterm“wool”alsosignifiesmohairorotherfibersifthecircumstancesareapplicable.NOTE3—Forfinenessspecificationsforwool,wooltop,mohair,mohairtop,alpaca,andcashmere,refertoSpecificationsD3991andD3992,SpecificationD2252,TestMethodD2816.1.3Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD584TestMethodforWoolContentofRawWool—LaboratoryScaleD629TestMethodsforQuantitativeAnalysisofTextilesD1060PracticeforCore...
