Designation:E2179−03(Reapproved2009)StandardTestMethodforLaboratoryMeasurementoftheEffectivenessofFloorCoveringsinReducingImpactSoundTransmissionThroughConcreteFloors1ThisstandardisissuedunderthefixeddesignationE2179;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONThistestmethodispartofasetforevaluatingthesound-insulatingpropertiesofbuildingelements.Itisdesignedtomeasurethereductionintransmissionofimpactsoundduetoafloorcoveringinalaboratory.Othersinthesetincludethemeasurementofsoundisolationinbuildings(TestMethodE336),thelaboratorymethodsofmeasuringairbornesoundtransmisssionlossofbuildingpartitionssuchaswalls,floor-ceilingassemblies,doors,andotherspace-dividingelements(TestMethodE90);thelaboratorymeasurementofimpactsoundtransmissionthroughfloors(TestMethodE492),themeasurementofimpactsoundtransmissioninbuildings(TestMethodE1007),themeasurementofsoundtransmissionthroughbuildingfacadesandfacadeelements(GuideE966),andthemeasure-mentofsoundtransmissionthroughacommonplenumbetweentworooms(MethodE1414).1.Scope1.1Thistestmethoddescribesamethodforthelaboratorymeasurementoftheeffectivenessoffloorcoveringsinreducingimpactnoisefromastandardtappingmachinethroughcon-cretefloors.Thetestresultsarenotnecessarilydirectlyrelatedtothesubjectiveevaluationsofthefloorcoverings.1.2Thistestmethodappliestoallfloorcoverings,whethersingleormulti-layered,asinstalledonastandardconcretefloor.Multi-layeredcoveringsmaybefactory-assembledorassembledatthetestlaboratory.1.3Thetestmethodappliesonlytolaboratorymeasure-ments.Itdoesnotapplytothemeasurementoftheeffective-nessofafloorcoveringinafieldsituation.1.4LaboratoryAccreditation—AprocedureforaccreditingalaboratoryforperformingthistestmethodisgiveninMethodE492.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,asso...
