Designation:D5332–00StandardTestMethodforFiberLengthandLengthDistributionofCottonFibers1ThisstandardisissuedunderthefixeddesignationD5332;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcanbeusedtodeterminethefiberlengthandlengthdistributionofstaplefibersof100mm(4in.)orless,usingtheFiberLengthMeasuringUnitAL-101.Itincludesdeterminationofthefiberlengthparametersforloosefibers,cardedslivers,drawnslivers,finisherslivers,combedslivers,androving.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificprecautionarystatements,see8.1.2.ReferencedDocuments2.1ASTMStandards:D123TerminologyRelatingtoTextiles2D1440TestMethodforLengthandLengthDistributionofCottonFibers(ArrayMethod)2D1441PracticeforSamplingCottonFibersforTesting2D1776PracticeforConditioningTextilesforTesting23.Terminology3.1Definitions—Fordefinitionsoftextiletermsusedinthistestmethodotherthanthoselistedbelow,refertoTerminologyD123.3.1.1A-tuft,n—asingle-passprocessforaligninghook-freefibersontheFibrolinerFL-101.3.1.2B-tuft,n—atwo-passprocessforaligninghookedfibersontheFibrolinerFL-101.3.1.3blendingplan,n—theinstructionsformixingfibersduringspecimenpreparation.3.1.4coeffıcientoflengthvariation,n—ameasureoffiberlengthdistribution.3.1.4.1Discussion—Thestandarddeviationexpressedasapercentofthemeanlength.3.1.5hooks,n—infibertesting,curvedorbentfiberendscausedbythecardingorspecimenpreparationprocesses.3.1.6horseshoe,n—alengthofsliverfoldedinamannersuchthatthetwoendscanbefedsimultaneou...
