Designation:D1814−70(Reapproved2021)StandardTestMethodforMeasuringThicknessofLeatherUnits1ThisstandardisissuedunderthefixeddesignationD1814;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthemeasurementofthethick-nessofunitsofalltypesofleather.Itisnotsuitableformeasuringthethicknessoftestspecimens.1.2Thethicknessofleatherunitsmaybereportedinmillimetres,ounces,orirons.Ouncesaregenerallyusedwhenreferringtothethicknessofshoeupperleather.Ironsaregenerallyusedwhenreferringtothethicknessofsoleleather.(Oneounceequals1⁄64in.or0.0156in.or0.396mm.Oneironequals1⁄48in.or0.0208in.or0.53mm.)1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1813TestMethodforMeasuringThicknessofLeatherTestSpecimens3.Terminology3.1Definitions:3.1.1unit—apieceofleatherintheforminwhichitispurchased,suchasasinglehide,skin,orpartthereof;orasinglefabricated-leatherarticleintheforminwhichitispurchased,suchasacounter,apairofshoes,agasket,etc.4.SignificanceandUse4.1Thistestmethodisdesignedfort...
