1、Designation: C1047 14C1047 14aStandard 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 l
2、ast 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 access
3、ories used in conjunction with assemblies of gypsum wallboard and gypsum veneer base toprotect edges and corners and to provide architectural features (see Fig. 1).1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematicalconversions to
4、 SI units that are provided for information only and 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 (G
5、alvannealed) by theHot-Dip ProcessA875/A875M Specification for Steel Sheet, Zinc-5 % Aluminum Alloy-Coated by the Hot-Dip ProcessA879/A879M Specification for Steel Sheet, Zinc Coated by the Electrolytic Process for Applications Requiring Designation ofthe Coating Mass on Each SurfaceB69 Specificatio
6、n for Rolled ZincB117 Practice for Operating Salt Spray (Fog) ApparatusC11 Terminology Relating to Gypsum and Related Building Materials and SystemsC475/C475M Specification for Joint Compound and Joint Tape for Finishing Gypsum BoardC587 Specification for Gypsum Veneer PlasterD1788 Specification for
7、 Rigid Acrylonitrile-Butadiene-Styrene(Abs) Plastics (Withdrawn 1988)3D3678 Specification for Rigid Poly(Vinyl Chloride) (PVC) Interior-Profile ExtrusionsD3935 Specification for Polycarbonate (PC) Unfilled and Reinforced MaterialD4549 Classification System and Basis for Specification for Polystyrene
8、 and Rubber-Modified Polystyrene Molding andExtrusion Materials (PS)D5927 Classification System for Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO Test MethodsD6386 Practice for Preparation of Zinc (Hot-Dip Galvanized) Coated Iron and Steel Product and Hardware Surface
9、s for Painting3. Terminology3.1 Definitions:3.1.1 Definitions shall be in accordance with Terminology C11.3.2 Definitions of Terms Specific to This Standard:3.2.1 accessories, ncornerbeads, edge trims, and control joints, such as casing beads, bull noses, and stops.3.2.2 control joint, na formed pro
10、duct used for designed or required separations between adjacent surfaces of gypsum boardsor gypsum veneer base.1 This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility ofSubcommittee C11.02 on Specifica
11、tions and Test Methods for Accessories and Related Products.Current edition approved April 15, 2014June 1, 2014. Published June 2014. Originally approved in 1992. Last previous edition approved in 2010 as C104710a.14. DOI:10.1520/C1047-14.10.1520/C1047-14a.2 For referencedASTM standards, visit theAS
12、TM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is n
13、ot an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropria
14、te. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*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 States13
15、.2.3 cornerbead, na formed metal, plastic, metal and paper, or plastic and paper angle for inside and outside corners ofgypsum boards or gypsum veneer basebase.3.2.4 edge trim, ntypically “J”- or “L”-shaped strip, as shown in Fig. 1, formed of metal, plastic, metal and paper, or plasticand paper to
16、cover exposed ends or edges of gypsum board or gypsum veneer base.3.2.5 flange, nthat portion of the accessory used for the attachment to gypsum wallboard, gypsum veneer base, or a framingmember.3.2.6 wing, nthat portion of paper that extends beyond the flange of the metal or plastic cornerbead or a
17、ccessory used to attachthe cornerbead or accessory to gypsum wallboard or gypsum veneer base.4. Materials and Manufacture4.1 Steel Accessories:4.1.1 Steel accessories and steel components of accessories manufactured from steel and paper in combination, with total flangewidth (sum of both flanges) le
18、ss than 2.0 in. (51 mm), shall be manufactured from zinc-coated cold-roll (coil or cut length) sheetsteel not less than 0.012-in. (0.30-mm) thick before application of coating.4.1.2 Steel accessories and steel components of accessories manufactured from steel and paper in combination, with total fla
19、ngewidth (sum of both flanges) greater than 2.0 in. (51 mm), shall be manufactured from zinc-coated cold-roll (coil or cut length) sheetsteel not less than 0.009-in. (0.23 mm) thick before application of coating.4.1.3 Sheet steel, zinc-coated by the hot-dip process, shall be in accordance with Speci
20、fication A653/A653M, minimizedspangle, minimum G-30 coating.4.1.4 Sheet steel, zinc-5 % aluminum alloy coated, shall be in accordance with Specification A875/A875M minimum GF15coating.4.1.5 Sheet steel, zinc-coated by the electrolytic process shall be in accordance with Specification A879/A879M mini
21、mumcoating on surface side to be 0.000140 in. (0.00356 mm), minimum coating on reverse side to be 0.00010 in. (0.00254 mm).4.1.6 Sheet steel, aluminum-coated, shall be in accordance with Specification A463/A463M minimum T1-40 coating.4.1.7 Zinc-phosphate treatment (as specified in 5.4.2 of Practice
22、D6386) or other surface treatments may be used to ensurecompatibility and bond as specified in Section 5.FIG. 1 Accessories for Gypsum Wallboard and Gypsum Veneer BaseC1047 14a24.2 Zinc accessories shall be manufactured from rolled zinc in accordance with Specification B69,Type I, not less than 0.01
23、2-in.(0.305-mm) thick.4.3 Plastic accessories and plastic components of accessories manufactured from plastic and paper in combination shall bemanufactured from rigid PVC,ABS, PETG, high-impact polystyrene (HIPS), or polycarbonate (PC) plastic not less than 0.028 in.(0.711 mm) in thickness, at the t
24、hickest 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, Specification D3935, PC01104.4 Paper components of accessories manufactured from steel and
25、paper in combination shall comply with requirements forthickness, tensile strength, dimensional stability, and bond of joint tape to joint compound as specified in SpecificationC475/C475M.5. Physical Properties5.1 Compatibility and BondAccessories shall be compatible with and provide a surface bond
26、to the materials specified inSpecifications C475/C475M and C587.5.2 Test PerformanceSteel accessories and steel components of accessories shall not show any red oxidation when tested asspecified in Practice B117 for 192 h.6. Dimensions and Permissible Variations6.1 Cornerbeads shall have an interior
27、 angle between the flanges no greater than 89.6.2 Accessories shall be free of twist or camber of a degree that will prevent their use in the 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 the gypsum boa
28、rd used.6.5 The minimum width of the flange of formed metal or plastic (not paper faced) cornerbeads shall be 78 in. (22 mm).6.6 The minimum flange width of paper faced metal or paper faced plastic cornerbead shall be 12 in. (13 mm).6.7 If paper faced metal or paper faced plastic cornerbead is inten
29、ded to be attached to wallboard using joint compound or otheradhesive alone, and requires the wings for adhesion, then the wings of the cornerbead shall have a minimum width of 12 in. (13mm).7. Appearance7.1 Edges of accessories shall be free of burrs and sharp edges.8. Configuration8.1 Flanges of a
30、ccessories, when required to be attached to framing members, shall have punch outs to accommodate fasteningto the framing members. When required to meet performance requirements, the flanges shall be either knurled, made of mesh,deformed, expanded, or otherwise shaped to meet the performance require
31、ments and intended use. Fig. 1 depicts the mostcommonly used shapes.NOTE 1Other types of accessories designed for special finish application (bull-nose, cove, and so forth) shall be manufactured in accordance withthe general requirements of this specification.9. Sampling9.1 At least 0.25 % of the nu
32、mber of each type of accessory in a shipment, but not less than three pieces, shall be selected torepresent the shipment and shall constitute a sample for the purpose of tests by the purchaser or user.10. Inspection10.1 Inspection of the accessories shall be agreed upon between the purchaser and the
33、 supplier as part of the purchase order.11. Rejection and Rehearing11.1 Rejection of accessories that fail to conform to the requirements of this specification shall be reported to the producer orsupplier promptly and in writing within 10 working days from receipt of shipment by the purchaser. The n
34、otice of rejection shallcontain a specific statement of the respect in which the accessories have failed to conform to the requirements of this specification.C1047 14a3In case of dissatisfaction with the results of the test, at the request of the producer or supplier, such notice of rejection shall
35、besupported by results of a test conducted by a mutually agreeable independent laboratory.12. Certification12.1 When specified in the purchase order, a producers or suppliers certification that the product meets the requirements ofthis specification shall be furnished to the purchaser.13. Packaging
36、and Package Marking13.1 Accessories shall be packaged to ensure safe delivery by common or other carriers.13.2 When shipped for resale, the name of the manufacturer or seller and the brand and contents shall be legibly marked oneach package.14. Keywords14.1 accessories; bead; corner; cornerbead; edg
37、eSUMMARY OF CHANGESCommittee C11 has identified the location of selected changes to this standard since the last issue (C104714)that may impact the use of this standard. (Approved June 1, 2014.)(1) Added new paragraph 4.1.4.(2) Added Specification A875/A875M to Section 2.1.C1047 14a4SUMMARY OF CHANG
38、ESCommittee C11 has identified the location of selected changes to this specification since the last issue,C104710a, that may impact the use of this specification. (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
39、.64.1.7.(6) Revised 4.3.(7) Revised 6.5.(8) Added 6.6 and 6.7.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such
40、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 responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited e
41、ither for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fai
42、r hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this sta
43、ndard 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 14a5
