Designation:D3776/D3776M−20StandardTestMethodsforMassPerUnitArea(Weight)ofFabric1ThisstandardisissuedunderthefixeddesignationD3776/D3776M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thesetestmethodscoverthemeasurementoffabricmassperunitarea(traditionallyreferredtoas“fabricweight”)andareapplicabletomostfabrics.1.2Therearefourapprovedoptions:1.2.1OptionA—FullPiece,Roll,BoltorCut(Section7).1.2.2OptionB—FullWidthSample(Section8).1.2.3OptionC—SmallSwatchofFabric(Section9).1.2.4OptionD—NarrowFabrics(Section10).1.3ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequivalents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1776PracticeforConditioningandTestingTextilesD3773TestMethodsforLengthofWovenFabricD3774TestMethodforWidthofTextileFabric2.2OtherStandard:ANSI/ASQCZ1.4InspectionbyAttributes33.Terminology3.1Thefollowingtermsarerelevanttothisstandard:cut;weight.3.2FordefinitionsofallothertextiletermsseeTe...
