Designation:D6961/D6961M−09(Reapproved2015)´1StandardTestMethodforColorMeasurementofFlaxFiber1ThisstandardisissuedunderthefixeddesignationD6961/D6961M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—TheTerminologysectionwasupdatedinaccordancewithD13policyinFebruary2015.1.Scope1.1Thistestmethodcoverstheinstrumentalcolormeasure-mentofflaxfiber.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1776PracticeforConditioningandTestingTextilesD6798TerminologyRelatingtoFlaxandLinenE284TerminologyofAppearanceE308PracticeforComputingtheColorsofObjectsbyUsingtheCIESystemE1164PracticeforObtainingSpectrometricDataforObject-ColorEvaluation2.2OtherStandard:AATCCEvaluationProcedure6InstrumentalColorMea-surement33.Terminology3.1ForallterminologyrelatedtoFlaxseeTerminologyD6798.3.1.1Thefollowingtermsarerelevanttothisstandard:dew-retting,enzyme-retting,andwater-retting.3.2Forothertextileterminology,seeTerminologyD123.4.SummaryofTestMethod4.1Samplesofflaxfiberarepresentedtoacolorspectro-photometer.Colormeasurementsaretakenthroughalargeapertureport25.4millimeter[1-in.]diameter,inordertoaverageoverthenaturalcolorvariationthatoccursinflaxfiber.Theinstrumentapertureisfittedwithaquartzwindow.Thewindowservestwofunctions,namely,toprovideabaseforcompacti...
