Designation:F1642−12StandardTestMethodforGlazingandGlazingSystemsSubjecttoAirblastLoadings1ThisstandardisissuedunderthefixeddesignationF1642;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONHistoricalrecordsshowthatfragmentsfromglazingthathasfailedastheresultofintentionaloraccidentalexplosionspresentaseriousthreatofpersonalinjury.Glazingfailurealsoallowsblastpressuretoentertheinteriorofbuildingsthusresultinginadditionalthreatofpersonalinjuryandfacilitydamage.Theserisksincreaseindirectproportiontotheamountofglazingusedonthebuildingfacade.Thistestmethodaddressesonlyglazingandglazingsystems.Itassumesthatthedesignerhasverifiedthatotherstructuralelementshavebeenadequatelydesignedtoresisttheanticipatedairblastpressures.1.Scope1.1Thistestmethodsetsforthproceduresfortheevaluationofhazardsofglazingorglazingsystemsagainstairblastloadings.Thespecifyingauthorityshallprovidetheairblastloadingparameters.1.2ThedataobtainedfromtestingunderthismethodshallbeusedtodeterminetheglazingorglazingsystemhazardratingusingSpecificationF2912.1.3Thistestmethodallowsforglazingtobetestedandratedwithorwithoutframingsystems.1.4Thistestmethodisdesignedtotestandrateallglazing,glazingsystems,andglazingretrofitsystemsincluding,butnotlimitedto,thosefabricatedfromglass,plastic,glass-cladplastics,laminatedglass,glass/plasticglazingmaterials,andfilm-backedglass.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Valuesgiveninparenthesesareforinformationonly.Forconversionofquantitiesinvarioussystemsofmeasure-mentstoSIunits,seeE699.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.SeeSection7fors...
