Designation:F1446−13AnAmericanNationalStandardStandardTestMethodsforEquipmentandProceduresUsedinEvaluatingthePerformanceCharacteristicsofProtectiveHeadgear1ThisstandardisissuedunderthefixeddesignationF1446;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONThesetestmethodsspecifyequipmentandproceduresusedfortestingprotectiveheadgear.IndividualASTMperformancestandards(standardspecifications)willusetheseproceduresandequipment.Testconditions,pass-failcriteria,andotherperformancerequirementswillbespecifiedintheindividualperformancestandards,tailoredtotheneedsofaparticularactivity(forexample,bicycling,skateboarding,skiing,etc.).Thesetestmethodsweredevelopedusingresourcesinmedical,scientific,mechanicalengineering,humanfactors,andbiomechanicalfields.However,itisrecognizedthatitisnotpossibletowriteaprotectiveheadgearperformancestandardthatwillresultinheadgearthatcanprotectagainstinjuryordeathinallaccidents.Itisalsorecognizedthatseriousinjuryordeathcanresultfrombothlow-andhigh-energyimpacts,evenwhenprotectiveheadgearisworn.Thesetestmethodsincorporateaspectsofotherrecognizedheadgearperformancestandards.Theydrawfromworkdonebyotherswhereappropriateforthesetestmethods.Thesestandardsarereferencedwithinthisstandardtestmethod.Itshouldbenotedthatthesetestmethodsspecifylaboratorytestsofcompletedheadgeartomeasureitsabilitytoreduceheadaccelerationduringuseandotherselectedparameters.1.Scope1.1Thesetestmethodscoverlaboratoryequipment,procedures,andbasicrequirementspertinenttotestingprotec-tiveheadgear.Deviationsoradditions,orboth,tothesetestmethodswillbespecified,asrequired,inindividualASTMperformancestandards.1.2Requirements—Theprotectiveheadgearistobetestedunderspecifiedenvironmentalconditionsforthefollowing:1.2.1Impactattenuation(thelimitingofheadacceleration)ofthep...
