Designation:F1936−10´1AnAmericanNationalStandardStandardSpecificationforImpactAttenuationofTurfPlayingSystemsasMeasuredintheField1ThisstandardisissuedunderthefixeddesignationF1936;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—Editoriallycorrected8.3inOctober2014.INTRODUCTIONTheimpactattenuationofturfplayingsystemscanbemeasuredinalaboratory,butsuchtestsareoftenconductedunderoptimalortightlycontrolledconditions.Toaccuratelyassesstheimpactattenuationanathletewillencounteronaninstalledfield,thatspecificfieldmustbetestedinsitu.Thatobjectivewastheimpetusforthedevelopmentofthisspecification.Initially,thestatedscopeofthespecificationwaslimitedtomeasuringtheimpactattenuationofNorthAmericanfootballfields.Thescopeofthecurrentrevisionencompassesabroaderrangeofsport-specificfieldconfigurationsandaprotocolforconductingtestsonmulti-sportfields.1.Scope1.1Thisspecificationestablishesaninsitutestmethodandmaximumimpactattenuationvalueforalltypesofturfplayingsystemsandforanumberofsport-specificfieldlayouts.Italsoincludesaprotocolfordeterminingtestpointlocationsonfieldsthatarelinedformultiplesports.1.1.1Turfplayingsystemsmaybelocatedoutdoorsorindoors,andtypicallyincludefieldareaswithinthein-boundslinesandareasoutsidethein-boundslinesextendingtosport-specificlimitlines;areaswhereanathleteshouldexpecttoencounterimpactattenuationperformancethatcomplieswiththisspecification.1.1.2Site-specificconditionsmayexistwhereinnon-turfsurfacematerials,suchastracksurfacingand/orcoversoversubsurfacestructures,arefoundwithintheboundariesofthelimitlines.Thesealternatesurfacematerialsarenotincludedinthescopeofthisspecification.1.2Thisspecificationestablishesamethodforreportingtestresultsandidentifyingareaswithinanexistingturfplayingsystemwhereimpactattenuationmeasurementsexceedre-quire...