1、Designation: C 1597M 04Standard Specification forGypsum Wallboard (Hard Metric Sizes)1This standard is issued under the fixed designation C 1597M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number
2、in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers gypsum wallboard which isdesigned to be used for walls, ceilings, or partitions and affordsa surface suitable to re
3、ceive decoration.NOTE 1Specification C 840 contains application procedures forgypsum wallboard.1.2 The values are stated in SI (metric) units only and are tobe regarded as standard. For gypsum wallboard produced toinch-pound units see Specification C 36/C 36 M.1.3 The text of this standard reference
4、s 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:2C 11 Terminology Relating to Gypsum and Related Build-ing Materials and SystemsC
5、36/C 36M Specification for Gypsum WallboardC 473 Test Methods for Physical Testing of Gypsum PanelProductsC 645 Specification for Nonstructural Steel Framing Mem-bersC 840 Specification for the Application and Finishing ofGypsum Board MetricC 1264 Specification for Sampling, Inspection, Rejection,Ce
6、rtification, Packaging, Marking, Shipping, Handling,and Storage of Gypsum BoardE 84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE 96 Test Methods for Water Vapor Transmission of Mate-rialsE 119 Test Methods for Fire Tests of Building Constructionand Materials3. Terminology3.1
7、 Definitions of terms shall be in accordance with Termi-nology C 11.4. 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 alum
8、inum 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 or34 hour fire-resistance for boards 13 mm thick,applied parallel with a
9、nd on each side of load bearing 2 3 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 E 119.NOT
10、E 2Consult 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
11、flame spread index ofnot more than 25 when tested in accordance with Test MethodE 84.5. Physical Properties5.1 Specimens shall be taken from the samples obtained inaccordance with Specification C 1264.5.2 Specimens shall be tested in accordance with TestMethods C 473.5.2.1 Flexural StrengthThe speci
12、mens shall be tested faceup and face down. The average breaking load shall be not lessthan the following: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 an
13、d Test Methods for Gypsum Products.Current edition approved May 1, 2004. Published May 2004.2For 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 S
14、ummary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Method A Method BThickness,in. mmLoad, NBearing EdgesAcross Fiberof SurfacingLoad, NBearing EdgesParallel toFiber ofSurfacingLoad, NBearingEdgesAcross Fib
15、erof SurfacingLoad, NBearing EdgesParallel toFiber ofSurfacing6.5 220 90 200 7010.0 360 140 340 12013.0 500 180 480 16016.0 660 220 640 20020.0 760 260 740 2405.2.2 Humidified DeflectionThe specimens shall have anaverage deflection of not more than the following:Thickness,mmHumidified Deflection,mm6
16、.5 not required10.0 4013.0 3016.0 1520.0 155.2.3 Core, End, and Edge HardnessThe specimens shallhave an average hardness of not less than 60 N when tested byMethod A and 50 N when tested by Method B.5.2.4 Nail Pull ResistanceThe specimens shall have anaverage nail-pull resistance of not less than th
17、e following:Thickness,mmMethod ANail PullResistance, NMethod BNail PullResistance, N6.5 180 16010.0 280 26013.0 360 34016.0 400 39020.0 440 4305.3 Foil Backed Gypsum Wallboard5.3.1 Foil-backed gypsum wallboard shall meet all of therequirements for gypsum wallboard.5.3.2 When tested in accordance wit
18、h Test Methods E 96,the permeance of foil-backed gypsum wallboard shall be notmore than 20 ng/Pasm2(Desiccant Method) for the conditionof 50 % relative humidity on the face of the board and 0 %relative humidity on the foil-covered back side of the board.6. Dimensions and Tolerances6.1 Specimens shal
19、l be taken from the samples obtained inaccordance with Specification C 1264.6.2 Thickness, width, length, and end squareness shall bedetermined in accordance with Test Methods C 473.6.2.1 ThicknessThe thickness shall be 6.5, 10.0, 13.0,16.0, 20.0 mm with tolerances in the nominal thickness of 60.5 m
20、m with local variations of 6 1.0 mm from the nominalthickness.6.2.2 WidthThe width shall be up to 1400 mm, with atolerance of 3 mm under the specified width.6.2.3 LengthThe length and tolerance shall be as follows:ThicknessmmLengthmmVariationmm6.5 1200 to 4000 6 610.0 1200 to 5000 6 613.0 1200 to 50
21、00 6 616.0 1200 to 5000 6 620.0 1200 to 5000 6 66.2.4 Tapered Edge DepthThe average thickness of theedge of recessed or tapered edge shall be not less than 0.50 mmbut not more than 2.5 mm less than the average thickness of thegypsum wallboard.6.2.5 End SquarenessCorners shall be square with atoleran
22、ce of 6 3 mm in the full width of the board.6.3 Edges and EndsThe edges and ends shall be straightand either square, beveled, featured, tapered, or featured andtapered.7. Finish and Appearance7.1 The surfaces of gypsum wallboard shall be true and freefrom imperfections that render the gypsum wallboa
23、rd unfit foruse with or without decoration.8. Sampling, Inspection, Rejection, Certification,Packaging, Marking, Shipping, Handling and Storage8.1 Shall be in accordance with Specification C 1264.9. Keywords9.1 ceiling; foil-backed; gypsum; gypsum wallboard; gyp-sum wallboard, type X; metric units;
24、partitions; wallC 1597M 042APPENDIX(Nonmandatory Information)X1. ALTERNATE DEFINITION FOR TYPE XINTRODUCTIONThis Appendix gives general information and also suggestions for inclusions to be made elsewhereby the specifier. They are not part of this specification.The definition of type X as given in 4
25、.3 and the alternate definition given in this appendix, areintended only as a test to define the gypsum wallboard as meeting the requirements of type X. Thesetests do not indicate a preferred application nor do they limit the use of the product in other fire ratedassemblies.All gypsum panel products
26、, except lath, shaftliner, and coreboard, use the same test for type Xproducts, therefore the type X designation indicates a consistent level of fire resistance.X1.1 Gypsum wallboard, type X (special fire-resistant)designates gypsum wallboard providing a greater fire resis-tance than regular gypsum
27、wallboard of the same thickness.Type X (special fire-resistant) gypsum wallboard, when testedin accordance with Test Methods E 119, shall provide thefollowing minimum fire resistance for the assemblies de-scribed:X1.1.1 One hour for a 16.0 mm thickness applied to apartition in a single layer applica
28、tion on each side of 90 mmdeep non-loadbearing galvanized steel studs complying withSpecification C 645, spaced 600 mm on center. The 16.0 mmthick gypsum wallboard 1200 mm wide shall be attached using25 mm long drywall screws spaced 200 mm on center along theedges and ends, and 300 mm along intermed
29、iate studs. Alljoints shall be oriented parallel to and located over studs andstaggered on opposite sides of the assembly, andX1.1.2 Two hours for a 13.0 mm thickness applied to apartition in a double layer application on each side of 65 mmdeep non-loadbearing galvanized steel studs complying withSp
30、ecification C 645, spaced 600 mm on center. The 1200 mmwide base layer shall be attached using 25 mm long drywallscrews spaced 300 mm on center along board edges, ends, andalong intermediate studs. Joints shall be oriented parallel to andlocated over studs and staggered on opposite sides of theassem
31、bly. The 1200 mm wide face layer shall be attached using40 mm long drywall screws spaced 300 mm along board edges,ends, and along intermediate studs. Joints shall be orientedparallel to and located over studs, offset 600 mm from the baselayer joints, and staggered on opposite sides of the assembly.A
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35、e 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 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).C 1597M 043
