ASTM_C_1047_-_14a.pdf

Designation:C104714aStandard Specification forAccessories for Gypsum Wallboard and Gypsum VeneerBase1This standard is issued under the fixed designation C1047;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope*1.1 This specification covers accessories used in conjunc-tion with assemblies of gypsum wallboard and gypsum veneerbase to protect edges and corners and to provide architecturalfeatures(see Fig.1).1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.2.Referenced Documents2.1 ASTM Standards:2A463/A463M Specification for Steel Sheet,Aluminum-Coated,by the Hot-Dip ProcessA653/A653M Specification for Steel Sheet,Zinc-Coated(Galvanized)or Zinc-Iron Alloy-Coated(Galvannealed)by the Hot-Dip ProcessA875/A875M Specification for Steel Sheet,Zinc-5%Alu-minum Alloy-Coated by the Hot-Dip ProcessA879/A879M Specification for Steel Sheet,Zinc Coated bythe Electrolytic Process for Applications Requiring Des-ignation of the Coating Mass on Each SurfaceB69 Specification for Rolled ZincB117 Practice for Operating Salt Spray(Fog)ApparatusC11 Terminology Relating to Gypsum and Related BuildingMaterials and SystemsC475/C475M Specification for Joint Compound and JointTape for Finishing Gypsum BoardC587 Specification for Gypsum Veneer PlasterD1788 Specification for Rigid Acrylonitrile-Butadiene-Styrene(Abs)Plastics(Withdrawn 1988)3D3678 Specification for Rigid Poly(Vinyl Chloride)(PVC)Interior-Profile ExtrusionsD3935 Specification for Polycarbonate(PC)Unfilled andReinforced MaterialD4549 Classification System and Basis for Specification forPolystyrene and Rubber-Modified Polystyrene Moldingand Extrusion Materials(PS)D5927 Classification System for Thermoplastic Polyester(TPES)Injection and Extrusion Materials Based on ISOTest MethodsD6386 Practice for Preparation of Zinc(Hot-Dip Galva-nized)Coated Iron and Steel Product and HardwareSurfaces for Painting3.Terminology3.1 Definitions:3.1.1 Definitions shall be in accordance with TerminologyC11.3.2 Definitions of Terms Specific to This Standard:3.2.1 accessories,ncornerbeads,edge trims,and controljoints,such as casing beads,bull noses,and stops.3.2.2 control joint,na formed product used for designedor required separations between adjacent surfaces of gypsumboards or gypsum veneer base.3.2.3 cornerbead,na formed metal,plastic,metal andpaper,or plastic and paper angle for inside and outside cornersof gypsum boards or gypsum veneer base.3.2.4 edge trim,ntypically“J”-or“L”-shaped strip,asshown in Fig.1,formed of metal,plastic,metal and paper,orplastic and paper to cover exposed ends or edges of gypsumboard or gypsum veneer base.3.2.5 flange,nthat portion of the accessory used for theattachment to gypsum wallboard,gypsum veneer base,or aframing member.1This specification is under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is the direct responsibilityof Subcommittee C11.02 on Specifications and Test Methods for Accessories andRelated Products.Current edition approved June 1,2014.Published June 2014.Originallyapproved in 1992.Last previous edition approved in 2010 as C104714.DOI:10.1520/C1047-14a.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.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.6 wing,nthat portion of paper that extends beyond theflange of the metal or plastic cornerbead or accessory used toattach the cornerbead or accessory to gypsum wallboard orgypsum veneer base.4.Materials and Manufacture4.1 Steel Accessories:4.1.1 Steel accessories and steel components of accessoriesmanufactured from steel and paper in combination,with totalflange width(sum of both flanges)less than 2.0 in.(51 mm),shall be manufactured from zinc-coated cold-roll(coil or cutlength)sheet steel not less than 0.012-in.(0.30-mm)thickbefore application of coating.4.1.2 Steel accessories and steel components of accessoriesmanufactured from steel and paper in combination,with totalflange width(sum of both flanges)greater than 2.0 in.(51 mm),shall be manufactured from zinc-coated cold-roll(coil or cutlength)sheet steel not less than 0.009-in.(0.23 mm)thickbefore application of co