1、Designation:F254812Standard Specification forExpanded Metal Fence Systems for Security Purposes1This standard is issued under the fixed designation F2548;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A num
2、ber in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers selection and installation ofexpanded metal fence systems for applications on new orretrofit fences for commercial,i
3、ndustrial,governmental orinstitutional facilities as applicable to homeland security,orwhere the possibility of malevolent incursion is significant.SeeFig.1 for typical examples of expanded metal fence applica-tions.This type of fence system is not recommended forresidential or public recreational f
4、acilities such as pools,schools,and kindergartens.1.2 This specification is intended to guide those responsiblefor or concerned with the design and installation of anexpanded metal fence system capable of denying or delayingunwanted access into or out of an area.1.3 No recommendation is made or impl
5、ied here as to themerits of the product from any particular manufacturer.Choiceof component selection for the expanded metal system shouldbe made by the writer of the project specification based on theirown perception of the products merit and the consequence ofa malevolent incursion.1.4 The values
6、stated in inch-pound units are to be regardedas standard.Any values given in parentheses are for informa-tion only.1.5 This specification does not purport to address all of thesafety and security concerns,if any,associated with homelandsecurity.It is the responsibility of the user of this standard t
7、oestablish the required and appropriate level of security.2.Referenced Documents2.1 ASTM Standards:2A123/A123M Specification for Zinc(Hot-Dip Galvanized)Coatings on Iron and Steel ProductsA307 Specification for Carbon Steel Bolts,Studs,andThreaded Rod 60 000 PSI Tensile StrengthB117 Practice for Ope
8、rating Salt Spray(Fog)ApparatusF934 Specification for Colors for Polymer-Coated ChainLink Fence MaterialsF1267 Specification for Metal,Expanded,SteelF1043 Specification for Strength and Protective Coatings onSteel Industrial Fence FrameworkF1083 Specification for Pipe,Steel,Hot-Dipped Zinc-Coated(Ga
9、lvanized)Welded,for Fence Structures2.2 American Society of Civil Engineers(ASCE):ASCE/SEI 7-05 Minimum Design Loads for Buildings andOther Structures3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 expanded metal fence systemcombines expandedmetal panels and structural framewor
10、k posts and rails,ifrequired with accessories and fasteners,assembled and evalu-ated as a complete system.Fig.1 shows typical applications.3.1.2 expanded metal panelelement used as filler for thefence system.The following terms are used to further definecharacteristics of the expanded metal panels(s
11、ee Fig.2 andFig.3).3.1.3 fittingany type of formed metal with the intent ofsecuring mesh filler to a framework.3.1.4 flattened expanded metal(F)Expanded metal whichhas been cold rolled leaving a flat,smooth surface.3.1.5 LWDlong way of diamond,nominal dimension(seeFig.2).3.1.6 regular(raised)expande
12、d metal(R)Expandedmetal as it comes from the press after being simultaneously slitand stretched having the strands and bonds form a uniformangle to the original plane of the solid sheet from which it wasformed creating an open mesh diamond making one continuouspanel that cannot unravel.3.1.7 SWDshor
13、t way of diamond,nominal dimension(seeFig.2).3.1.8 strand thicknessthickness of base metal.3.1.9 strand widthamount of material fed under the die toproduce one strand.1This specification is under the jurisdiction of ASTM Committee F14 on Fencesand is the direct responsibility of Subcommittee F14.35
14、on Architectural MetalFence Systems.Current edition approved July 1,2012.Published September 2012.Originallyapproved in 2006.Last previous edition approved in 2006 as F2548-06.DOI:10.1520/F2548-12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at s
15、erviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.Classification4.1 Expanded metal used on fences for secur
16、ity applicationsshall meet the material requirements of Specification F1267.Expanded metal referenced in this specification is classified bytypes and classes as follows:4.2 Type4.2.1 Type 1Expanded(see Fig.2 Type 1)4.2.2 Type 2Expanded and flattened(see Fig.2 Type 2)NOTE1While it is not the intent of this specification to limit theselection of expanded metal“Type”to a specific fence application,historical practice is a relevant factor to consider during the selectionprocess.Construction of new e
