Designation:D2347−00(Reapproved2015)StandardTestMethodforMeasuringAreaofLeatherTestSpecimens1ThisstandardisissuedunderthefixeddesignationD2347;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthemeasurementofthesurfaceareaofleathertestspecimens.Unlessotherwisespecified,thesurfacetobemeasuredshallbethegrainsurfaceorthesurfacemostcloselyadjacenttothegrainsurface.Thistestmethoddoesnotapplytowetblue.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1610PracticeforConditioningLeatherandLeatherProd-uctsforTesting3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1areaofacircularspecimen—theaveragediametersquaredandmultipliedbyπ4andreportedtothenearest1mm2.3.1.2areaofarectangularspecimen—theproductoftheaveragedistanceacrossthewidthofthegrainsurfacemulti-pliedbytheaveragedistanceacrossthelengthofthegrainsurfaceoftheleatherspecimentothenearest1mm2.4.SignificanceandUse4.1Thistestmethodisdesignedtomeasuretheareaofspecimensbeforeandaftertheyaresubjectedtovariousteststhatmayeffectsurfacearea.Twotestprocedureswhereinsuchmeasurementscouldbeusedarefortheapparentdensityofleatherandtheresistanceofleathertosyntheticperspirationsolution.5.Apparatus5.1Die,ofappropriatesizeforroundorrectangularleatherspecimens,havinguniformdimensionsinthe50to80mmrange.Whenrigidandthickleathers,suchassoleleathers,arebeingmeasured,aknifemaybeusedtoproducethetestspecimenprovidedstraightedgesareobtained.5.2MalletorClickingMachin...
