Designation:D1770−94(Reapproved2012)´1StandardTestMethodforNeps,VegetableMatter,andColoredFiberinWoolTop1ThisstandardisissuedunderthefixeddesignationD1770;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—TheterminologysectionwasupdatedinJuly2012.1.Scope1.1Thistestmethodcoversthedeterminationofthenumberofnepsandpiecesofvegetablematterbysizeclasses,andthenumberofcoloredfibers,in15gsamplesofwooltop.21.2Thistestmethodisapplicabletowooltopinanyform.NOTE1—Forthedeterminationofnumberofnepsperspecifiedmassofcottonsamples,refertoTestMethodD1446.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3D123TerminologyRelatingtoTextilesD1776PracticeforConditioningandTestingTextilesD1446MethodofTestforNumberofNepsinCottonSamples(Withdrawn1977)4D4845TerminologyRelatingtoWool2.2ASTMAdjuncts:5NepScaleStandard(1Photo),VegetableMatterStandard(1Photo)3.Terminology3.1ForallterminologyrelatedtoD13.13,refertoTermi-nologyD4845.3.1.1Thefollowingtermsarerelevanttothisstandard:coloredfiber,inwooltop;laboratorysample;lot,inacceptancetesting;nep;testspecimen,forwooltop;top,inwool;vegetablematter.3.1.2Fordefinitionsofothertextiletermsusedinthistestmethod,refertoTerminologyD123.4.SummaryofTestMethod4.1Fourtestspecimensaretakenandexaminedinaccor-dancewithspecifiedprocedures.Eachobservedneporpieceofvegetablematterisclassifiedbysize,byvisualcomparisonwithaspecifiedstandardsizechart.Thenumbersofeachclassofnepsandclassofvegetablematterpieces,andthenumberofcoloredfibers,arerecordedforeachspecimen.Fromthesedatatheaveragecountsperspecimenof15garecalculated.5.Signif...
