1、Designation: C1047 14Standard 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 revis
2、ion. 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 use
3、d 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
4、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)
5、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
6、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Specification for Gypsum Veneer PlasterD1788 Specification for Rigid Acrylonitrile-Butadiene-Styrene(Abs) Plastics (Withdrawn 1988)3D3678 Specification for Rigid Poly(Vin
7、yl 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 Thermoplast
8、ic 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 Defi
9、nitions 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
10、 cornerbead, na formed metal, plastic, metal andpaper, or plastic and paper angle for inside and outside cornersof gypsum boards or gypsum veneer base3.2.4 edge trim, ntypically “J”- or “L”-shaped strip, asshown in Fig. 1, formed of metal, plastic, metal and paper, orplastic and paper to cover expos
11、ed 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.3.2.6 wing, nthat portion of paper that extends beyond theflange of the metal or plastic cornerbead or accessory used
12、toattach the cornerbead or accessory to gypsum wallboard orgypsum veneer base.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 Accessor
13、ies andRelated Products.Current edition approved April 15, 2014. Published June 2014. Originallyapproved in 1992. Last previous edition approved in 2010 as C104710a. DOI:10.1520/C1047-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at servicea
14、stm.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 Internatio
15、nal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. 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 th
16、an 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
17、 (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 coating.4.1.3 Sheet steel, zinc-coated by the hot-dip process, shallbe in accordance with Specification A6
18、53/A653M, minimizedspangle, minimum G-30 coating.4.1.4 Sheet steel, zinc-coated by the electrolytic processshall be in accordance with Specification A879/A879M mini-mum coating on surface side to be 0.000140 in. (0.00356 mm),minimum coating on reverse side to be 0.00010 in. (0.00254mm).4.1.5 Sheet s
19、teel, aluminum-coated, shall be in accordancewith Specification A463/A463M minimum T1-40 coating.4.1.6 Zinc-phosphate treatment (as specified in 5.4.2 ofPractice D6386) or other surface treatments may be used toensure compatibility and bond as specified in Section 5.4.2 Zinc accessories shall be man
20、ufactured from rolled zincin accordance with Specification B69, Type I, not less than0.012-in. (0.305-mm) thick.4.3 Plastic accessories and plastic components of accesso-ries manufactured from plastic and paper in combination shallbe manufactured from rigid PVC, ABS, PETG, high-impactpolystyrene (HI
21、PS), or polycarbonate (PC) plastic not less than0.028 in. (0.711 mm) in thickness, at the thickest point.4.3.1 PVC, Specification D3678, Class II or III.4.3.2 ABS, Specification D1788 81, all limits 5-3-3-1-1.4.3.3 PETG, Specification D5927, TPES0310.4.3.4 HIPS, Specification D4549, PS02214.3.5 PC,
22、Specification D3935, PC01104.4 Paper components of accessories manufactured fromsteel and paper in combination shall comply with requirementsfor thickness, tensile strength, dimensional stability, and bondof joint tape to joint compound as specified in SpecificationC475/C475M.5. Physical Properties5
23、.1 Compatibility and BondAccessories shall be compat-ible with and provide a surface bond to the materials specifiedin Specifications C475/C475M and C587.5.2 Test PerformanceSteel accessories and steel compo-nents of accessories shall not show any red oxidation whentested as specified in Practice B1
24、17 for 192 h.FIG. 1 Accessories for Gypsum Wallboard and Gypsum Veneer BaseC1047 1426. Dimensions and Permissible Variations6.1 Cornerbeads shall have an interior angle between theflanges no greater than 89.6.2 Accessories shall be free of twist or camber of a degreethat will prevent their use in th
25、e assembly for which they areintended.6.3 Length tolerances shall be 6316 in. (64.8 mm).6.4 The size of the edge trim shall suit the thickness of thegypsum board used.6.5 The minimum width of the flange of formed metal orplastic (not paper faced) cornerbeads shall be78 in. (22 mm).6.6 The minimum fl
26、ange width of paper faced metal orpaper faced plastic cornerbead shall be12 in. (13 mm).6.7 If paper faced metal or paper faced plastic cornerbead isintended to be attached to wallboard using joint compound orother adhesive alone, and requires the wings for adhesion, thenthe wings of the cornerbead
27、shall have a minimum width of12in. (13 mm).7. Appearance7.1 Edges of accessories shall be free of burrs and sharpedges.8. Configuration8.1 Flanges of accessories, when required to be attached toframing members, shall have punch outs to accommodatefastening to the framing members. When required to me
28、etperformance requirements, the flanges shall be either knurled,made of mesh, deformed, expanded, or otherwise shaped tomeet the performance requirements and intended use. Fig. 1depicts the most commonly used shapes.NOTE 1Other types of accessories designed for special finish appli-cation (bull-nose
29、, cove, and so forth) shall be manufactured in accordancewith the general requirements of this specification.9. Sampling9.1 At least 0.25 % of the number of each type of accessoryin a shipment, but not less than three pieces, shall be selectedto represent the shipment and shall constitute a sample f
30、or thepurpose of tests by the purchaser or user.10. Inspection10.1 Inspection of the accessories shall be agreed uponbetween the purchaser and the supplier as part of the purchaseorder.11. Rejection and Rehearing11.1 Rejection of accessories that fail to conform to therequirements of this specificat
31、ion shall be reported to theproducer or supplier promptly and in writing within 10working days from receipt of shipment by the purchaser. Thenotice of rejection shall contain a specific statement of therespect in which the accessories have failed to conform to therequirements of this specification.
32、In case of dissatisfactionwith the results of the test, at the request of the producer orsupplier, such notice of rejection shall be supported by resultsof a test conducted by a mutually agreeable independentlaboratory.12. Certification12.1 When specified in the purchase order, a producers orsupplie
33、rs certification that the product meets the requirementsof this specification shall be furnished to the purchaser.13. Packaging and Package Marking13.1 Accessories shall be packaged to ensure safe deliveryby common or other carriers.13.2 When shipped for resale, the name of the manufactureror seller
34、 and the brand and contents shall be legibly marked oneach package.14. Keywords14.1 accessories; bead; corner; cornerbead; edgeSUMMARY OF CHANGESCommittee C11 has identified the location of selected changes to this specification since the last issue,C104710a, that may impact the use of this specific
35、ation. (Approved April 15, 2014.)(1) Revised 3.2.3 and 3.2.4.(2) Added 3.2.6.(3) Added 4.1.(4) Revised 4.1.1 and 4.1.2.(5) Renumbered 4.1.3 4.1.6.(6) Revised 4.3.(7) Revised 6.5.(8) Added 6.6 and 6.7.C1047 143ASTM International takes no position respecting the validity of any patent rights asserted
36、in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the
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38、reful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM Internatio
39、nal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).C1047 144
