Designation:D178−19StandardSpecificationforRubberInsulatingMatting1ThisstandardisissuedunderthefixeddesignationD178;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thisspecificationcoversacceptancetestingofrubberinsulatingmattingforuseasafloorcoveringforprotectionofworkers.1.2Twotypesofmatting,differinginchemicalandphysicalcharacteristics,areprovidedandaredesignatedasTypeIandTypeIImatting.1.3Thefollowingsafetyhazardscaveatappliesonlytothetestmethodportion,Sections17to19,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenvironmentalpracticesanddeterminetheappli-cabilityofregulatorylimitationspriortouse.NOTE1—Rubberinsulatingmattingshouldremainflexibleforusethroughnormaltemperatureranges.NOTE2—Rubberasusedinthisspecificationisagenerictermthatincludeselastomersandelastomercompounds,regardlessoforigin.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D149TestMethodforDielectricBreakdownVoltageandDielectricStrengthofSolidElectricalInsulatingMaterialsatCommercialPowerFrequenciesD297TestMethodsforRubberProducts—ChemicalAnaly-sisD412TestMethodsforVulcanizedRubberandThermoplas-ticElastomers—TensionD471TestMethodforRubberProperty—EffectofLiquidsD518TestMethodforRubberDeterioration—SurfaceCracking(Withdrawn2007)3D570TestMethodforWaterAbsorptionofPlasticsD573TestMethodforRubber...
