ASTM_C_1766_-_15.pdf

Designation:C176615Standard 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 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 covers the factory-laminated gypsumpanel products designed either for use on walls,ceilings,orpartitions as part of a sound 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 systemshall 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 establish 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 PanelProductsC1264 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 Surface Burning Characteristics ofBuilding MaterialsE119 Test Methods for Fire Tests of Building Constructionand 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-laminatedinto a composite panel.4.1.1 The individual gypsum panel products shall complywith Specification C1278,C1396,or 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 aflame spread index of not more than 25 when tested inaccordance with Test Method E84.4.4 Factory-laminated gypsum panel products,type X(Spe-cial Fire-Resistant):4.4.1 Factory-laminated gypsum panel products,type X,designates factory-laminated gypsum panel products comply-ing with this specification that provides not less than 1 hfire-resistance rating for panels58in.15.9 mm thick or34hfire-resistance rating for panels12in.12.7 mm thick,appliedparallel with and on each side of load bearing 2 by 4 woodstuds spaced 16 in.406 mm on centers with 6d coated nails,178-in.48-mm long,0.0915-in.2.3-mm diameter shank,14-in.6.4-mm diameter heads,spaced 7 in.178 mm oncenters with gypsum panel joints staggered 16 in.406 mm oneach side of the partition and tested in accordance with TestMethods E119.5.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 C473.5.2.1 Flexural StrengthThe specimens shall be tested faceup and face down.The average breaking load shall be not lessthan the following:1This 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 and Test Methods for Gypsum Products.Current edition approved Feb.1,2015.Published February 2015.Originallyapproved in 2013.Last previous edition approved in 2013 as C1766 13.DOI:10.1520/C176615.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 Thickness,in.mmMethod ABearingEdgesPerpendicularto PanelLength,lbf NMethod ABearingEdgesParallelto PanelLength,lbf NMethod BBearingEdgesPerpendicularto PanelLength,lbf NMethod BBearingEdgesParallelto PanelLength,lbf N1212.7110 48940 178107 47636 1605815.9140 62250 222137 60946 2053419.0170 75660 267167 74356 2491 25.4230 102380 356228 101477 3435.2.2 Humidified DeflectionThe specimens shall have anaverage deflection of not more than the following:Thickness,in.mmDeflection,in.mm1212.71-14325815.958163419.0not required1 25.4not required5.2.3 Nail Pull ResistanceThe specimens shall have anaverage nail-pull resistance of not less than the following:Thickness,in.mmMethod A,lbf NMethod B,lbf N1212.780 35677 3435