Designation:F355−16´1AnAmericanNationalStandardStandardTestMethodforImpactAttenuationofPlayingSurfaceSystems,OtherProtectiveSportSystems,andMaterialsUsedforAthletics,RecreationandPlay1ThisstandardisissuedunderthefixeddesignationF355;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—EditoriallycorrectedA1.9inDecember2016.1.Scope1.1Thistestmethodmeasurestheimpactattenuationofsurfacesystemsandmaterials,specificallythepeakimpactacceleration(“impactshock”)producedunderprescribedim-pactconditions.1.2Thistestmethodisapplicabletonaturalandartificialsurfacesystemsintendedtoprovideimpactattenuation,includ-ingnaturalandartificialturfsportsfields.1.3Thistestmethodisapplicabletoimpactattenuatingmatsandpaddingusedinsportsfacilities,includingstadiumwallpadding,gymnasticmats,wrestlingmats,turfplayingsystems,polevaultlandingsystems,playgroundprotectivesurfacing,andothersystems.1.4Thistestmethodisusedtomeasuretheimpactattenu-ationofmaterialsandcomponentsusedasprotectivepaddingontrampolineframes,goalposts,etc.,providedthematerialorcomponentcanbetestedseparatelyfromtheequipmenttowhichitisattached.1.5Withoutmodifications,thistestmethodshallnotbeusedtotestmaterialsandcomponentsthatareattachedtostructuresorequipmentorfinishedproducts,unlesstheimpactattenua-tionofthewholesystemisofinterest.1.6Whileitiswidelybelievedthatappropriateimpactattenuationcanreducetheriskofimpact-relatedinjuries,therelationshipsbetweentheresultsofthistestmethodandspecificinjuryriskandoutcomeshavenotbeendetermined.1.7ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandd...
