1、Designation: C1396/C1396M 14aStandard Specification forGypsum Board1This standard is issued under the fixed designation C1396/C1396M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision, the year of last revision. A number in parenthese
2、s indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers the gypsum boards describedin 1.1.1 1.1.9.NOTE 1Specifications C840, C841, C844 and C1280 contain appli-cation procedures for gy
3、psum board.1.1.1 Gypsum wallboard, designed for use on walls,ceilings, or partitions and that affords a surface suitable toreceive decoration.1.1.2 Predecorated gypsum board, designed for use as thefinished surfacing for walls, ceilings, or partitions.1.1.3 Gypsum backing board, coreboard, and shaft
4、linerboard, designed for use as a base in multilayer systems or as agypsum stud or core in semisolid or solid gypsum boardpartitions, or in shaft wall assemblies.NOTE 2The terms backing board, coreboard, and shaftliner boardrefer to different end uses. The term gypsum backing board, as used in thiss
5、pecification, shall include gypsum coreboard and gypsum shaftlinerboard unless otherwise stated.1.1.4 Water-resistant gypsum backing board, designed pri-marily to be used as a base for the application of ceramic orplastic tile on walls or ceilings. This product is also suitable fordecoration.1.1.5 E
6、xterior gypsum sofft board, designed for use onexterior soffits and carport ceilings that are completely pro-tected from contact with liquid water.1.1.6 Gypsum sheathing board, designed for use as sheath-ing on buildings.1.1.7 Gypsum base for veneer plaster, designed for use as abase for the applica
7、tion of gypsum veneer plaster.1.1.8 Gypsum lath, designed for use as a base for theapplication of gypsum plaster.1.1.9 Gypsum ceiling board, designed for use on interiorceilings with framing spaced not more than 24 in. 610 mm oncenter and that affords a surface suitable to receive water-basedtexture
8、 and other decoration. This product is also suitable foruse on interior walls.1.2 Specifications applicable to all gypsum boards arelocated in Section 14and 1315. Specifications applicableto specific gypsum boards are located in the following sections:SectionGypsum Wallboard, Predecorated Gypsum Boa
9、rd,and Laminated Gypsum Board5Gypsum backing board, gypsum coreboard,gypsum shaftliner board6Water-resistant gypsum backing board 7Exterior gypsum soffit board 8Gypsum sheathing board 9Gypsum base for veneer plaster 10Gypsum lath 11Gypsum Ceiling Board 121.3 The values stated in either SI units or i
10、nch-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-conforman
11、ce with thestandard2. Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related BuildingMaterials and SystemsC22/C22M Specification for GypsumC471M Test Methods for ChemicalAnalysis of Gypsum andGypsum Products (Metric)C473 Test Methods for Physical Testing of Gypsum Pan
12、elProductsC645 Specification for Nonstructural Steel Framing Mem-bersC840 Specification forApplication and Finishing of GypsumBoardC841 Specification for Installation of Interior Lathing andFurringC844 Specification for Application of Gypsum Base toReceive Gypsum Veneer PlasterC1264 Specification fo
13、r Sampling, Inspection, Rejection,Certification, Packaging, Marking, Shipping, Handling,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 fo
14、r Gypsum Products.Current edition approved Oct. 1, 2014. Published October 2014. Originallyapproved in 1998. Last previous edition approved in 2014 as C1396/C1396M 14.DOI: 10.1520/C1396_C1396M-14A.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service a
15、t serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.*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.
16、 United States1and Storage of Gypsum Panel ProductsC1280 Specification for Application of Exterior GypsumPanel Products for Use as SheathingD3273 Test Method for Resistance to Growth of Mold on theSurface of Interior Coatings in an Environmental Cham-berE84 Test Method for Surface Burning Characteri
17、stics ofBuilding MaterialsE96/E96M Test Methods for Water Vapor Transmission ofMaterialsE119 Test Methods for Fire Tests of Building Constructionand Materials3. Terminology3.1 Definitions used in this specification shall be in accor-dance with Terminology C11.3.2 Definitions of Terms Specific to Thi
18、s Standard:3.2.1 decorative coating, na paint or other liquid materialwith or without aggregate.3.2.2 decorative sheet or film, na plastic film, eitherbacked or unbacked; plastic sheet; or combination of these.3.2.3 edge, nthe bound edge as manufactured.3.2.4 gypsum backing board, na14 to58-in. 6.4
19、to 15.9-mm gypsum board used as a backing for gypsum wallboard,acoustical tile, or other dry cladding.3.2.5 gypsum coreboard, na34 to 1-in. 19.0 to 25.4-mmgypsum board used as a gypsum stud or core in semisolid orsolid gypsum board partitions.3.2.6 nominal thickness, nthe manufacturer-stated frac-ti
20、onal value of thickness of the gypsum panel product ex-pressed in decimal value to the nearest one-thousandth (11000)of an inch.4. Materials and Manufacture4.1 Gypsum board shall consist of a noncombustible core ofgypsum complying with Specification C22/C22M, surfacedwith paper bonded to the core.4.
21、1.1 Gypsum sheathing board shall consist of a noncom-bustible water-resistant core of gypsum complying with Speci-fication C22/C22M, surfaced on both the face and back withwater-repellant paper bonded to the core.4.1.2 Gypsum coreboard shall be either a single board orcomposed of two factory-laminat
22、ed gypsum boards to provideup to 1 in. 25.4 mm total nominal thickness.4.1.3 Water-resistant gypsum backing board shall consist ofa noncombustible water-resistant core of gypsum complyingwith Specification C22/C22M, surfaced on both the back andface with water-repellant paper bonded to the core.4.1.
23、4 Predecorated gypsum board shall consist of a noncom-bustible core of gypsum complying with Specification C22/C22M, surfaced with paper bonded to the core with the facecovered with a decorative sheet, film, or coating.4.1.4.1 Class I predecorated gypsum board shall have adecorative sheet or film la
24、minated to the face.4.1.4.2 Class II predecorated gypsum board shall have adecorative coating applied to the face.4.1.5 Laminated gypsum board shall consist of two or morefactory laminated gypsum boards that conform to this specifi-cation.4.2 The back surface of foil-backed gypsum board shall inaddi
25、tion be covered with aluminum foil.4.3 Gypsum board, mold resistant, designates gypsum boardhaving not more than 20 % mold growth, based on surface areacoverage, when tested in accordance with Test Method D3273.4.4 Gypsum Board, type X (Special Fire-Resistant):4.4.1 Gypsum Board, type X, designates
26、gypsum board,except gypsum lath, gypsum coreboard, and gypsum shaftlinerboard, complying with this specification that provides not lessthan 1 h fire-resistance rating for boards58 in. 15.9 mm thickor34 h fire-resistance rating for boards12 in. 12.7 mm thick,applied parallel with and on each side of
27、load bearing 2 by 4wood studs spaced 16 in. 406 mm on centers with 6d coatednails, 178 in. 48 mm long, 0.0915-in. 2.3-mm diametershank,14-in. 6.4-mm diameter heads, spaced 7 in. 178 mmon centers with gypsum board joints staggered 16 in. 406 mmon each side of the partition and tested in accordance wi
28、th TestMethods E119.4.4.2 Gypsum Lath, type X designates gypsum lath comply-ing with this specification that provides not less than a 1-hfire-resistance rating for gypsum lath38 in. 9.5 mm thick,when applied at right angles to and on each side of loadbearing2 4 wood studs spaced 16 in. 406 mm on cen
29、ters with bluelath nails spaced 5 in. 127 mm on centers over which isapplied12 in. 12.7 mm 1:2 gypsum sand plaster and tested inaccordance with the requirements of Test Method E119.NOTE 3Consult producers for independent test data on assemblydetails and fire-resistance ratings for other types of con
30、struction. See firetest reports or listings from recognized fire testing laboratories forassembly particulars, materials, and ratings.4.4.3 Gypsum shaftliner board, type X, designates gypsumshaftliner board complying with this specification that meetsthe acceptance criteria for temperature rise for
31、not less than1-12 h for boards34-in. 19.0 mm thick or 2 h for boards 1-in.25.4 mm thick, when applied in a double layer solid nonloadbearing partition as described in 4.4.3.1 and tested in accor-dance with Test Methods E119 with thermocouple locations asspecified in 4.4.3.2.4.4.3.1 Two layers of gyp
32、sum shaftliner board appliedvertically and friction fit into vertical 25-gauge steel “H”members, 1-12-in. 38.1 mm deep for boards34-in. 19.0 mmthick or 2-in. 50.8 mm deep for boards 1-in. 25.4 mm thick,spaced 24-in. 610 mm on centers and 25-gauge steel track atthe perimeter of the partition. “H” mem
33、bers shall be formedwith a single web or shall be two pieces of perimeter trackfastened together along the web with screws spaced 24-in.610 mm on centers.4.4.3.2 Temperature rise on the unexposed surface shall bemeasured using not less than five thermocouples; one shall belocated at the center of th
34、e assembly and one shall be locatedat the center of each quadrant. Thermocouples shall be locatednot less than 3-in. 76 mm from an “H” member.4.5 Gypsum wallboard, gypsum backing board, exteriorgypsum soffit board, and gypsum ceiling board shall have aC1396/C1396M 14a2flame spread index of not more
35、than 25 when tested inaccordance with Test Method E84.4.6 Physical Properties, Dimensions, and Tolerances ofGypsum Board:4.6.1 Specimens shall be taken from the samples obtained inaccordance with Specification C1264.4.6.1.1 Specimens shall be tested in accordance with TestMethods C473.4.6.2 Core, En
36、d, and Edge HardnessThe specimens shallhave an average hardness of not less than 15 lbf 67 N whentested by Method A and 11 lbf 49 N when tested by MethodB.4.6.2.1 When testing laminated gypsum board, if the lami-nated components are the same product and thickness, the testshall be conducted on eithe
37、r component of the laminatedproduct. If the laminated gypsum board is comprised ofdifferent products or thicknesses, each component shall betested.4.6.3 Edges and EndsThe edges and ends shall bestraight.4.6.4 LengthThe tolerance in length shall be 614 in. 66mm.4.6.5 Tapered Edge DepthThe average thi
38、ckness of theedge of recessed or tapered edge gypsum board shall be notless than 0.020 in. 0.51 mm but not more than 0.090 in. 2.29mm less than the average thickness of the gypsum board.4.7 Volatile Sulfur Compounds:4.7.1 Gypsum board shall contain not greater than 10 ppmof orthorhombic cyclooctasul
39、fur (S8), when tested in accor-dance with Test Methods C471M, that when exposed to heat,humidity, or both, emits volatile sulfur compounds in quantitiesthat cause abnormal corrosion on electrical wiring, plumbingpipes, fuel gas lines, HVAC equipment, or any components ofthe foregoing.5. Gypsum Wallb
40、oard, Predecorated Gypsum Board, andLaminated Gypsum Board5.1 Physical Properties of Gypsum Wallboard, Predeco-rated Gypsum Board, and Laminated Gypsum Board:5.1.1 Flexural StrengthThe specimens shall be tested faceup and face down. The average breaking load shall be not lessthan the following:Thick
41、ness,in. mmMethod ABearing EdgesPerpendicularto Panel Length,lbf NMethod ABearing EdgesParallel to PanelLength, lbf NMethod BBearing EdgesPerpendicularto Panel Length,lbf NMethod BBearing EdgesParallel to PanelLength, lbf N14 6.4 50 222 20 89 46 205 16 71516 7.9 65 289 25 111 62 276 21 9338 9.5 80 3
42、56 30 133 77 343 26 11612 12.7 110 489 40 178 107 476 36 16058 15.9 150 667 50 222 147 654 46 20534 19.0 170 756 60 267 167 743 56 2495.1.2 Humidified DeflectionThe specimens shall have anaverage deflection of not more than the following:Thickness, Deflection,in. mm eighths of an inch mm14 6.4 not r
43、equired516 7.9 not required38 9.5 15 4812 12.7 10 3258 15.9 5 1634 19.0 5 165.1.3 Nail Pull ResistanceThe specimens shall have anaverage nail-pull resistance of not less than the following:Thickness, Method A, Method B,in. mm lbf N lbf N14 6.4 40 178 36 160516 7.9 50 222 46 20538 9.5 60 267 56 24912
44、 12.7 80 356 77 34358 15.9 90 400 87 38734 19.0 100 445 97 4325.1.4 Foil-Backed Gypsum Wallboard and Foil-Backed Pre-decorated Gypsum Board:5.1.4.1 Foil-backed gypsum wallboard and foil-backed pre-decorated gypsum board shall meet all of the requirements forgypsum wallboard and predecorated gypsum b
45、oard.5.1.4.2 When tested in accordance with Test Methods E96/E96M, the permeance of foil-backed gypsum wallboard andfoil-backed predecorated gypsum board shall be not more than0.30 perm 17 ng/Pasm2 (Desiccant Method) for the condi-tion of 50 % relative humidity on the face of the board, and0 % relat
46、ive humidity on the back (foil-covered) side of theboard.5.2 Dimensions and Tolerances of Gypsum Wallboard, Pre-decorated Gypsum Board, and Laminated Gypsum Board:5.2.1 ThicknessThe thickness shall be from14 to34 in.6.4 to 19.0 mm with tolerances of 6 0.015 in. 6 0.40 mm,and with local variations of
47、 6 0.030 in. 6 0.80 mm.5.2.2 WidthThe width shall be up to 48 in. 1220 mm, orup to 54 in. 1370 mm, with a tolerance of332 in. 3 mmunder the specified width.5.2.3 End SquarenessCorners shall be square with atolerance of 618 in. 63 mm in the full width of the board.5.3 Edges:5.3.1 The edges of gypsum
48、wallboard or laminated gypsumboard shall be either square, beveled, featured, tapered, orfeatured and tapered.5.3.2 The edges of predecorated gypsum board shall beeither square, beveled, or featured.6. Gypsum Backing Board, Gypsum Coreboard, andGypsum Shaftliner Board6.1 Physical Properties of Gypsu
49、m Backing Board, GypsumCoreboard, and Gypsum Shaftliner Board:C1396/C1396M 14a36.1.1 Flexural StrengthThe specimens shall be tested faceup and face down. The average breaking load shall be not lessthan the following:Thickness,in. mmMethod ABearing EdgesPerpendicularto Panel Length,lbf NMethod ABearing E
