Designation:F2548−12(Reapproved2018)StandardSpecificationforExpandedMetalFenceSystemsforSecurityPurposes1ThisstandardisissuedunderthefixeddesignationF2548;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoversselectionandinstallationofexpandedmetalfencesystemsforapplicationsonneworretrofitfencesforcommercial,industrial,governmentalorinstitutionalfacilitiesasapplicabletohomelandsecurity,orwherethepossibilityofmalevolentincursionissignificant.SeeFig.1fortypicalexamplesofexpandedmetalfenceapplica-tions.Thistypeoffencesystemisnotrecommendedforresidentialorpublicrecreationalfacilitiessuchaspools,schools,andkindergartens.1.2Thisspecificationisintendedtoguidethoseresponsiblefororconcernedwiththedesignandinstallationofanexpandedmetalfencesystemcapableofdenyingordelayingunwantedaccessintooroutofanarea.1.3Norecommendationismadeorimpliedhereastothemeritsoftheproductfromanyparticularmanufacturer.Choiceofcomponentselectionfortheexpandedmetalsystemshouldbemadebythewriteroftheprojectspecificationbasedontheirownperceptionoftheproduct’smeritandtheconsequenceofamalevolentincursion.1.4Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Anyvaluesgiveninparenthesesareforinforma-tiononly.1.5Thisspecificationdoesnotpurporttoaddressallofthesafetyandsecurityconcerns,ifany,associatedwithhomelandsecurity.Itistheresponsibilityoftheuserofthisstandardtoestablishtherequiredandappropriatelevelofsecurity.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2A123/A123MSpecificationforZinc(Hot...