Designation:D3453−12StandardSpecificationforFlexibleCellularMaterials—UrethaneforFurnitureandAutomotiveCushioning,Bedding,andSimilarApplications1ThisstandardisissuedunderthefixeddesignationD3453;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecificationcoversflexiblecellularurethanema-terialsintendedforsuchusesasinsertsforfurniturecushions,mattresses,andsimilarapplications.1.2Thisspecificationprovidesmaterialanddimensionalrequirementsandmethodsoftestsforspecificpropertiesofloadbearing,compressionset,humidageresistance,poundingfatigueresistance,supportfactorandresilience.1.3Thisspecificationincludesreferencestogovernmentregulationsforburningcharacteristicsofflexiblecellularmaterialusedinspecifiedapplications.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.NOTE1—ThereisnoequivalentISOstandard.2.ReferencedDocuments2.1ASTMStandards:2D3574TestMethodsforFlexibleCellularMaterials—Slab,Bonded,andMoldedUrethaneFoamsD3675TestMethodforSurfaceFlammabilityofFlexibleCellularMaterialsUsingaRadiantHeatEnergySource2.2OtherDocuments:16CFR1632(PreviouslyDoCFF4-72),StandardfortheFlammabilityofMattresses3FMVSS302DoTMotorVehicleSafetyStandard3DOTFederalAviationRegulation(FAR),Part25.853,Para-graph(b),andAppendixF3SimplifiedPracticeRecommendationsR2-62BeddingProd-uctsandComponents(Mattresses,Springs,Bedsteads,andCots)43.Classification3.1Thisspecificationcoverseightgradesofflexiblecellularmaterialtha...
