ASTM_C_1597M_-_04_2009e1.pdf

Designation:C1597M04(Reapproved 2009)1Standard Specification forGypsum Wallboard(Hard Metric Sizes)1This standard is issued under the fixed designation C1597M;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.1NOTESpecification C 36/C 36M was replaced with Specification C1396/C1396M editorially in 1.2 and ReferencedDocuments in September 2009.1.Scope1.1 This specification covers gypsum wallboard which isdesigned to be used for walls,ceilings,or partitions and affordsa surface suitable to receive decoration.NOTE1Specification C840 contains application procedures for gyp-sum wallboard.1.2 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.For gypsum wallboard produced to inch-pound unitssee Specification C1396/C1396M.1.3 The text of this standard references notes and footnotesthat provide explanatory material.These notes and footnotes(excluding those in tables and figures)shall not be consideredas requirements of the standard.2.Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related BuildingMaterials and SystemsC473 Test Methods for Physical Testing of Gypsum PanelProductsC645 Specification for Nonstructural Steel Framing Mem-bersC840 Specification forApplication and Finishing of GypsumBoardC1264 Specification for Sampling,Inspection,Rejection,Certification,Packaging,Marking,Shipping,Handling,and Storage of Gypsum Panel ProductsC1396/C1396M Specification for Gypsum BoardE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE119 Test Methods for Fire Tests of Building Constructionand Materials3.Terminology3.1 Definitions of terms shall be in accordance with Termi-nology C11.4.Materials and Manufacture4.1 Gypsum wallboard shall consist of a noncombustiblecore,essentially gypsum,surfaced with paper bonded to thecore.4.2 Foil backed gypsum wallboard shall consist of gypsumwallboard with a layer of aluminum foil laminated to the backsurface.4.3 Gypsum wallboard,type X(special fire resistant)des-ignates gypsum wallboard complying with this specificationthat provides not less than 1 hour fire-resistance for boards 16mm thick or34hour fire-resistance for boards 13 mm thick,applied parallel with and on each side of load bearing 2 4wood studs spaced 400 mm o.c.with coated nails,50 mm long,2.0 mm diameter shank,6.0 mm diameter heads,spaced 200mm o.c.with wallboard joints staggered 400 mm on each sideof the partition and tested in accordance with the requirementsof Test Methods E119.NOTE2Consult producers for independent test data on assemblydetails and fire resistance classifications for other types of construction.See fire test reports or listings from recognized fire testing laboratories forassembly particulars,materials,and classifications.4.4 Gypsum wallboard shall have a flame spread index ofnot more than 25 when tested in accordance with Test MethodE84.5.Physical Properties5.1 Specimens shall be taken from the samples obtained inaccordance with Specification C1264.5.2 Specimens shall be tested in accordance with TestMethods C473.1This specification is under the jurisdiction of ASTM Committee C11 onGypsum and Related Building Materials and Systems and is the direct responsibilityof Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products.Current edition approved Sept.1,2009.Published September 2009.Originallyapproved in 2004.Last previous edition approved in 2004 as C1597M 04.DOI:10.1520/C1597M-04R09E01.2For 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 StatesNOTICE:This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International(www.astm.org)for the latest information1 5.2.1 Flexural StrengthThe specimens shall be tested faceup and face down.The average breaking load shall be not lessthan the following:Method AMethod BThickness,in.mmLoad,NBearing EdgesAcross Fiberof SurfacingLoad,NBearing EdgesParallel toFiber ofSurfacingLoad,NBearingEdgesAcross Fiberof SurfacingLoad,NBearing EdgesParallel toFiber ofSurfacing6.5220902007010.036014034012013.050018048016016.066022064020020.07602607402405.2.2 Humidified DeflectionThe specimens shall have anaverage deflection of not more than the following:Thickness,mmHumidified Deflection,mm6.5not required10.04013.03016.01520.0155.2.3 Core,End,and Edge HardnessThe specimens shallhave an average hardness of not less than 60 N wh