1、Designation: C1766 13Standard Specification forFactory-Laminated Gypsum Panel Products1This standard is issued under the fixed designation C1766; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number i
2、n 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 the factory-laminated gypsumpanel products designed either for use on walls, ceilings, orpartitions as part of a soun
3、d control system; or for use as agypsum stud or gypsum coreboard.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. Within the text, theSI units are shown in brackets. The values stated in eachsystem may not be exact equivalents; therefore, each sy
4、stemshall be used independently of the other. Combining valuesfrom the two systems may result in non-conformance with thestandard.1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establis
5、h appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related BuildingMaterials and SystemsC473 Test Methods for Physical Testing of Gypsum PanelProductsC126
6、4 Specification for Sampling, Inspection, Rejection,Certification, Packaging, Marking, Shipping, Handling,and Storage of Gypsum Panel ProductsC1278 Specification for Fiber-Reinforced Gypsum PanelC1396 Specification for Gypsum BoardC1658 Specification for Glass Mat Gypsum PanelsE84 Test Method for Su
7、rface Burning Characteristics ofBuilding Materials3. Terminology3.1 Definitions used in this specification shall be in accor-dance with Terminology C11.4. Materials and Manufacture4.1 Factory-laminated gypsum panel products shall be com-posed of two or more gypsum panel products factory-laminatedint
8、o a composite panel.4.1.1 The individual gypsum panel products shall complywith Specification C1278, Specification C1396, or Specifica-tion C1658.4.2 Laminating adhesive shall be applied to either one orboth of the surfaces being laminated.4.3 Factory-laminated gypsum panel products shall have aflam
9、e spread index of not more than 25 when tested inaccordance with Test Method E84.5. Physical Properties5.1 Specimens of factory-laminated gypsum panel productsshall be taken from the samples obtained in accordance withSpecification C1264.5.2 Specimens shall be tested in accordance with TestMethods C
10、473.5.2.1 Flexural StrengthThe specimens shall be tested faceup and face down. The average breaking load shall be not lessthan the following:Thickness,in. mmMethod ABearingEdgesPerpendicularto PanelLength,lbf NMethod ABearingEdgesParallelto PanelLength,lbf NMethod BBearingEdgesPerpendicularto PanelL
11、ength,lbf NMethod BBearingEdgesParallelto PanelLength,lbf N12 12.7 110 489 40 178 107 476 36 16058 15.9 140 622 50 222 137 609 46 20534 19.0 170 756 60 267 167 743 56 2491 25.4 230 1023 80 356 228 1014 77 3435.2.2 Humidified DeflectionThe specimens shall have anaverage deflection of not more than th
12、e following:Thickness,in. mmDeflection,in. mm12 12.7 1-14 3258 15.958 1634 19.0 not required1 25.4 not required1This test method is under the jurisdiction ofASTM Committee C11 on Gypsumand Related Building Materials and Systems and is the direct responsibility ofSubcommittee C11.01 on Specifications
13、 and Test Methods for Gypsum Products.Current edition approved June 15, 2013. Published August 2013. DOI: 10.1520/C176613.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, ref
14、er 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 States15.2.3 Nail Pull ResistanceThe specimens shall have anaverage nail-pull resistance of not less than the following:Thickness,in
15、. mmMethod A,lbf NMethod B,lbf N12 12.7 80 356 77 34358 15.9 90 400 87 38734 19.0 100 445 97 4321 25.4 not required not required6. Dimensions and Tolerances6.1 Specimens of factory-laminated gypsum panel productsshall be taken from the samples obtained in accordance withSpecification C1264.6.2 Speci
16、mens shall be tested in accordance with TestMethods C473.6.2.1 ThicknessThe thickness shall be from12 to 1 in.12.7 to 25.4 mm with tolerances of 60.030 in. 60.80 mm,with local variations of 6 0.060 in. 6 1.6 mm.6.2.2 WidthThe width tolerance for the composite panelshall be not more than18 in. 3.2 mm
17、 under the specifiedwidth.6.2.3 LengthThe length tolerance for the composite panelshall be 614 in. 66 mm.6.2.4 End SquarenessCorners shall be square with atolerance of 618 in. 63 mm in the full width of thefactory-laminated gypsum panel product.6.3 Edges and EndsThe edges and ends shall be straighta
18、nd the edges shall be either tapered, square, beveled, round,V-tongue and groove, or featured.6.4 Panel AlignmentThe individual gypsum panel prod-ucts comprising the composite panel shall be aligned with eachother. The offset between panels shall not be greater than14 in.(6.4 mm) at the ends and18 i
19、n. (3.2 mm) at the edges as shownin Fig. 1.6.4.1 WidthThe widths of the individual gypsum panelproducts comprising the composite panel shall not differ bymore than332 in. 0.2 mm.6.4.2 LengthThe lengths of the individual gypsum panelproducts comprising the composite panel shall not differ bymore than
20、316 in. 0.5 mm.7. Finish and Appearance7.1 The surfaces of factory-laminated gypsum panel prod-ucts shall be true and free from imperfections that would renderit unfit for use with or without decoration.8. Sampling, Inspection, Rejection, Certification,Packaging, Marking, Shipping, Handling, and Sto
21、rage8.1 Sampling, inspection, rejection, certification, packaging,marking, shipping, handling, and storage of factory-laminatedgypsum panel products shall be in accordance with Specifica-tion C1264.9. Keywords9.1 ceiling; coreboard; drywall; factory-laminated; gypsum;gypsum board; gypsum ceiling boa
22、rd; gypsum coreboard;gypsum wallboard; partitions; plaster; sound control; wall;wallboardASTM 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 o
23、f 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 responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn.
24、 Your comments are invited either 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 comm
25、ents 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 International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or
26、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/).FIG. 1 Maximum Permissible OffsetsC1766 132
