Designation:D6961/D6961M−09(Reapproved2021)StandardTestMethodforColorMeasurementofFlaxFiber1ThisstandardisissuedunderthefixeddesignationD6961/D6961M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheinstrumentalcolormeasure-mentofflaxfiber.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequivalents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1776/D1776MPracticeforConditioningandTestingTex-tilesD6798TerminologyRelatingtoFlaxandLinenE284TerminologyofAppearanceE308PracticeforComputingtheColorsofObjectsbyUsingtheCIESystemE1164PracticeforObtainingSpectrometricDataforObject-ColorEvaluation2.2OtherStandard:AATCCEvaluationProcedure6InstrumentalColorMea-surement33.Terminology3.1ForallterminologyrelatedtoFlaxseeTerminologyD6798.3.1.1Thefollowingtermsarerelevanttothisstandard:dew-retting,enzyme-retting,andwater-retting.3.2Forothertextileterminology,seeTerminologyD123.4.SummaryofTestMethod4.1Samplesofflaxfiberarepresentedtoacolorspectro-photometer.Colormeasurem...
