Designation:F2416−06(Reapproved2011)AnAmericanNationalStandardStandardSpecificationforProtectiveHeadgearUsedinElectricPersonalAssistiveMobilityDevices1ThisstandardisissuedunderthefixeddesignationF2416;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversperformancerequirementsforhelmetsmanufacturedforusersofelectricpersonalassistivemobilitydevices.1.2AlltestingandrequirementsofthisspecificationshallbeinaccordancewithTestMethodsF1446,exceptwherenotedinthisspecification.1.3Partialutilizationofthisspecificationisprohibited.Anystatementofcompliancewiththisspecificationshallbeacertificationthattheproductmeetsalloftherequirementsofthespecificationinitsentirety.Aproductthatfailstomeetanyoneoftherequirementsofthisspecificationisconsideredtohavefailedthespecificationandshouldnotbesoldwithanyindicationthatitmeetspartsofthespecification.2.ReferencedDocuments2.1ASTMStandards:2F1446TestMethodsforEquipmentandProceduresUsedinEvaluatingthePerformanceCharacteristicsofProtectiveHeadgear3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1electricpersonalassistivemobilitydevice,n—electrically-drivenwheeleddeviceforpersonalmobilitywithaspeedlimitedtonomorethan22.5kph(14mph).4.Headforms4.1HeadformstobeusedinthisspecificationareasspecifiedinTestMethodsF1446.Theappropriatesizehead-formshallbeselectedforthehelmettobetestedasspecifiedinTestMethodsF1446.5.AnvilsandImpactVelocities5.1Anvilstobeusedforimpacttestsinthisspecificationaretheflat,hemispherical,andcurbstoneanvilsdescribedinTestMethodsF1446.5.2Thehelmetshallbedroppedontotheflatanviltoachieveanimpactvelocityof6.2m/s.5.3Thehelmetshallbedroppedontothehemisphericalandcurbstoneanvilstoachieveanimpactvelocityof4.8m/s.5.4Theimpactvelocityshallbemeasuredduringthelast40mmoffree-fallforeachtestan...
