ASTM F2408-2011 Standard Specification for Ornamental Fences Employing Galvanized Steel Tubular Pickets《用电镀钢管柱装饰栅栏的标准规格》.pdf
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1、Designation: F2408 11Standard Specification forOrnamental Fences Employing Galvanized Steel TubularPickets1This standard is issued under the fixed designation F2408; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、revision. A number 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 establishes the minimum require-ments for coated tubular picket ornamental fence systemsfabricated from
3、galvanized steel components.1.2 The requirements of this specification do not apply tovertical bar fence systems utilizing solid bar or wrought ironmaterials.1.3 The values stated with in-pound units are to be regardedas standard. The SI values in parentheses are provided forinformation.2. Reference
4、d Documents2.1 ASTM Standards:2A239 Practice for Locating the Thinnest Spot in a Zinc(Galvanized) Coating on Iron or Steel Articles,A653/A653M Specification for Steel Sheet, Zinc-Coated(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed)by the Hot-Dip ProcessA1008/A1008M Specification for Steel, Sh
5、eet, Cold-Rolled, Carbon, Structural, High-Strength Low-Alloy,High-Strength Low-Alloy with Improved Formability, So-lution Hardened, and Bake HardenableA1011/A1011M Specification for Steel, Sheet and Strip,Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy,High-Strength Low-Alloy with Improved
6、Formability, andUltra-High StrengthB117 Practice for Operating Salt Spray (Fog) ApparatusD523 Test Method for Specular GlossD714 Test Method for Evaluating Degree of Blistering ofPaintsD822 Practice for Filtered Open-Flame Carbon-Arc Expo-sures of Paint and Related CoatingsD1654 Test Method for Eval
7、uation of Painted or CoatedSpecimens Subjected to Corrosive EnvironmentsD2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD2794 Test Method for Resistance of Organic Coatings tothe Effects of Rapid Deformation (Impact)D3359 Test Meth
8、ods for Measuring Adhesion by Tape TestE4 Practices for Force Verification of Testing MachinesF2814 Guide for Design and Construction of OrnamentalSteel Picket Fence Systems for Security Purposes3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 tubular picket ornamental metal fe
9、nce systemanarchitectural metal fence system that combines ornamentalfence structural components (that is, tubular pickets, rails, andposts) with ornamental accessories and fasteners, assembledand evaluated as a complete installed structure.3.1.2 fence panelfabricated unit consisting of rails andpic
10、kets. Also referred to as a fence section.3.1.3 railhorizontal structural component of a fencepanel.3.1.4 tubular pickethollow vertical ornamental compo-nent of a fence panel.3.1.5 postvertical fence structural component that sup-ports the panel in the ornamental metal fence system.3.1.6 ornamental
11、accessoryany fitting that adds furtherdecoration to an ornamental metal fence system includingitems such as finials, caps, picket collars, rings, scrolls, or otherornamental panel inserts.3.1.7 adhesionthe bonding integrity of an organic coatingto the base metal substrate.1This specification is unde
12、r the jurisdiction of ASTM Committee F14 on Fencesand is the direct responsibility of Subcommittee F14.35 on Architectural MetalFence Systems.Current edition approved Dec. 1, 2011. Published January 2012. Originallyapproved in 2004. Last previous edition approved in 2009 as F2408 - 09. DOI:10.1520/F
13、2408-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive,
14、 PO Box C700, West Conshohocken, PA 19428-2959, United States.3.1.8 corrosion resistancethe ability of an organicallycoated metal product to resist attack due to the base metalattempting to return to a more passive oxidized state.3.1.9 impact resistancethe measure of an organicallycoated metal produ
15、ct to resist indention; the ability of a coatingto resist cracking or loss of adhesion due to reforming the metalduring bending or a shape change from abuse.3.1.10 weathering resistancethe ability of an organicallycoated metal product to resist loss of coating gloss or colorchange due to excessive h
16、umidity or ultra-violet (UV) sunlightexposure.4. Significance and Use4.1 The purpose of this specification is to define minimumselection criteria and test procedures to ensure product usersthat a tubular picket ornamental metal fence system has thestrength necessary to withstand reasonable loads and
17、 penetra-tion forces, and has the appropriate combination of materialand surface protection to withstand the harmful effects ofcorrosion and weathering for an extended period of time.4.2 For security applications, more definitive requirementsare listed in Guide F2814.5. Materials and Manufacture5.1
18、Steel material for tubular picket ornamental fence sys-tem structural components shall be galvanized by the hot-dipprocess, either after forming (in accordance with 5.1.1), orprior to forming (in accordance with 5.1.2).5.1.1 Steel material for fence structural components (that is,tubular pickets, ra
19、ils, and posts), when galvanized after form-ing, shall conform to the requirements of Specification A1008/A1008M or Specification A1011/A1011M, with a minimumyield strength of 45 000 psi (310 MPa). The exterior shall behot-dip galvanized with a 0.3 oz/ft2(92 g/m2) minimum zincweight. The exterior ga
20、lvanized surface shall be chemicaltreated or conversion coated to adhere a polymeric coating. Apolymeric coating shall be applied and provide a minimum of95 % surface coverage as disclosed by Practice A239, Proce-dure 7.1. The interior surface shall be coated with a thermo-setting coating containing
21、 zinc or other rust inhibitors and have0.3 mils (0.0076 mm) minimum thickness.5.1.2 Steel material for fence structural components (that is,tubular pickets, rails, and posts), when galvanized prior toforming, shall conform to the requirements of SpecificationA653/A653M, with a minimum yield strength
22、 of 45 000 psi(310 MPa). For Industrial applications (see Table 1), the steelshall be hot-dip galvanized to meet SpecificationA653/A653Mwith a minimum zinc coating weight of 0.9 oz/ft2(276 g/m2),Coating Designation G-90. For Light Industrial and Residentialapplications (see Table 1), the steel shall
23、 be hot-dip galvanizedto meet Specification A653/A653M with a minimum zinccoating weight of 0.6 oz/ft2(184 g/m2), Coating DesignationG-60.5.2 Organic Coating Materials:5.2.1 Powder coatings applied to the exterior surface offence components shall be polymer material: polyester orepoxy and polyester
24、combinations having a minimum thick-ness of 3 mils; polyolefin elastomer having a minimumthickness of 7 mils; or PVC having a minimum thickness of 10mils.5.2.2 Wet coating applied to the exterior surface of fencecomponents shall be a two-coat paint application system (onecoat of epoxy, polyester or
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