1、Designation: C1278/C1278M 07a (Reapproved 2015)C1278/C1278M 17Standard Specification forFiber-Reinforced Gypsum Panel1This standard is issued under the fixed designation C1278/C1278M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses 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 fiber-reinforced gypsum panels described in 1.1.1 1.1.4.1.1.1 Interior Fiber-R
3、einforced Gypsum Panels are designed to be used for walls, ceilings, or partitions and affords a suitablesurface to receive decoration.1.1.2 Water-Resistant Fiber-Reinforced Gypsum Backing Panels are designed primarily to be used as a base for the applicationof ceramic or plastic tile on walls or ce
4、ilings. This product is also suitable for decoration.1.1.3 Exterior Fiber-Reinforced Gypsum Sofft Panels are designed for use on exterior soffits and carport ceilings that arecompletely protected from contact with liquid water.1.1.4 Water-Resistant Exterior Fiber-Reinforced Gypsum Sheathing Panels a
5、re designed for use as sheathing on buildings.1.1.5 Interior Fiber-Reinforced Gypsum Underlayment Panels are designed for use as a base for application of finished flooringmaterials.1.1.6 Fiber-Reinforced Gypsum Board Panels are designed for use in roofing systems.1.2 Specifications applicable to al
6、l fiber-reinforced gypsum panels are located in Sections 1 4 and 11 13 except as modifiedby applicable product sections. Specifications applicable to specific panels are located in the following sections:Interior Fiber-Reinforced Gypsum Panels 5Water-Resistant Fiber-Reinforced Gypsum Backing Panels
7、6Exterior Fiber-Reinforced Gypsum Soffit Panels 7Water-Resistant Exterior Fiber-Reinforced Gypsum SheathingPanels8Water-Resistant Exterior Fiber-Reinforced Gypsum SheathingPanels8Interior Fiber-Reinforced Gypsum Underlayment Panels 9Fiber-Reinforced Gypsum Roof Board Panels 101.3 The values stated i
8、n either inch-pound units or SI (metric) are to be regarded separately as the standard. Within the text, theSI units are shown in brackets. The values stated in each system shall be used independently of the other. Values from the twosystems shall not be combined.1.4 The text of this specification r
9、eferences notes and footnotes that provide explanatory material. These notes and footnotesshall not be considered as requirements of the standard.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Pr
10、inciples for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C11 Terminology Relating to Gypsum and Related Building Materials and SystemsC22/C22M Speci
11、fication for GypsumC473 Test Methods for Physical Testing of Gypsum Panel ProductsC645 Specification for Nonstructural Steel Framing Members1 This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility ofSub
12、committee C11.01 on Specifications and Test Methods for Gypsum Products.Current edition approved Dec. 1, 2015May 1, 2017. Published December 2015May 2017. Originally approved in 1994. Last previous edition approved in 20112015 asC1278/C1278M 07a (2011).(2015). DOI: 10.1520/C1278_C1278M-07AR15.10.152
13、0/C1278_C1278M-17.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and i
14、s intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the
15、 current versionof the standard as published by ASTM is to be considered the official document.*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. United States1C1264 Specification for Sa
16、mpling, Inspection, Rejection, Certification, Packaging, Marking, Shipping, Handling, and Storage ofGypsum Panel ProductsD1037 Test Methods for Evaluating Properties of Wood-Base Fiber and Particle Panel MaterialsD3273 Test Method for Resistance to Growth of Mold on the Surface of Interior Coatings
17、in an Environmental ChamberE84 Test Method for Surface Burning Characteristics of Building MaterialsE96/E96M Test Methods for Water Vapor Transmission of MaterialsE119 Test Methods for Fire Tests of Building Construction and Materials3. Terminology3.1 DefinitionsDefinitions of terms shall be in acco
18、rdance with Terminology C11.3.1.1 nominal thickness, nthe manufacturer-stated fractional value of thickness of the gypsum panel product expressed indecimal value to the nearest one-thousandth (0.001) of an inch.4. Materials and Manufacture4.1 Fiber-reinforced gypsum panels shall consist essentially
19、of gypsum with fibers dispersed throughout.4.1.1 GypsumSpecification C22/C22M.4.1.2 FibersCellulose, derived from paper, paperboard stock, wood, or other organic material.4.2 The back surface of foil-backed fiber-reinforced gypsum panels shall in addition be covered with aluminum foil.4.3 Water-resi
20、stant fiber-reinforced gypsum panels shall be treated with a material that imparts water resistance throughout.4.4 Fiber-reinforced gypsum panels, mold resistant, designates fiber-reinforced gypsum panels having not more than 20 % moldgrowth, based on surface area coverage, when tested in accordance
21、 with Test Method D3273.4.5 Fiber-reinforced gypsum panels, type X (special fire-resistant) designates fiber-reinforced gypsum panels complying withthis specification that provide not less than 1-h fire resistance rating for panels 58-in. 15.9-mm thick or 34-h fire resistance ratingfor panels 12-in.
22、 12.7-mm thick, applied parallel with and on each side of load bearing 2 by 4 wood studs spaced 16 in. 406 mmon center with 6d coated nails, 178-in. 48-mm long, 0.0915-in. 2.3-mm diameter shank, 14-in. 6.4-mm diameter heads, spaced7 in. 178 mm on center with fiber-reinforced gypsum panel joints stag
23、gered 16 in. 406 mm 406 mm on each side of thepartition and tested in accordance with Test Methods E119.NOTE 1Consult producers for independent test data on assembly details and fire resistance ratings for other types of construction. See fire test reportsor listings from recognized fire testing lab
24、oratories for assembly particulars, materials, and ratings.4.6 Fiber-reinforced gypsum panels shall have a flame spread index of not more than 25 when tested in accordance with TestMethod E84.4.7 Physical Properties, Dimensions, and Tolerances of Gypsum Panel:4.7.1 Specimens shall be taken from samp
25、les obtained in accordance with Specification C1264.4.7.1.1 Specimens shall be tested in accordance with Test Methods C473.4.7.2 Core, End, and Edge HardnessThe specimens shall have an average hardness of not less than 20 lbf 90 N when testedin accordance with Method B.4.7.3 Edges and EndsThe edges
26、and ends shall be straight.4.7.4 LengthThe nominal length shall be from 6 to 24 ft 1830 to 7320 mm, with a tolerance of 614 in. 6 mm from thespecified length.4.7.5 Tapered Edge DepthThe average thickness of the edge of recessed or tapered edge shall be not less than 0.020 in. 0.51mm but not more tha
27、n 0.090 in. 2.29 mm less than the average thickness of the fiber-reinforced gypsum panel.5. Interior Fiber-Reinforced Gypsum Panels5.1 Physical Properties of Interior Fiber-Reinforced Gypsum Panels:5.1.1 Flexural StrengthThe specimens shall be tested face up and face down. The average breaking load
28、shall be not less thanthe following:Thickness, in. mm Method B, lbf N12 12.7 110 49058 15.9 155 6905.1.2 Humidified DeflectionThe specimens shall have an average deflection of not more than the following:C1278/C1278M 172Thickness, in. mm Deflection, eighths of an inch, mm12 12.7 3 1058 15.9 2 65.1.3
29、 Nail Pull ResistanceThe specimens shall have an average nail pull resistance of not less than the following:Thickness, in. mm Method B, lbf N12 12.7 120 53558 15.9 145 6455.2 Dimensions and Tolerances of Interior Fiber-Reinforced Gypsum Panel:5.2.1 Specimens shall be taken from samples in accordanc
30、e with Specification C1264.5.2.1.1 Specimens shall be tested in accordance with Test Methods C473.5.2.2 ThicknessThe thickness shall be 12 or 58 in. 12.7 or 15.9 mm with tolerances of60.015 in. 60.4060.015 in. 60.40mm, and with a local tolerance of 6 0.030 in. 6 0.80 60.030 in. 60.80 mm.5.2.3 WidthT
31、he width shall be up to 54 in. 1370 mm, with a tolerance of 332 in. 3 mm under the specified width.5.2.4 End SquarenessCorners shall be square with a tolerance of 618 in. 6 3 63 mm in the full width of the panel.5.3 EdgesThe edges shall be either square, beveled, featured, tapered, or featured and t
32、apered.5.4 Foil-Backed Fiber-Reinforced Gypsum Panels:5.4.1 Foil-backed fiber-reinforced gypsum panels shall meet all of the requirements for fiber-reinforced gypsum panels. Inaddition, aluminum foil shall be bonded to the back surface.5.4.2 When tested in accordance with Test Methods E96/E96M, the
33、permeance of foil-backed fiber-reinforced gypsum panelsshall be not more than 0.30 perm 17 ng/Pasm2 (Desiccant Method) for the condition of 50 % relative humidity on the face ofthe panel and 0 % relative humidity on the foil-covered back side of the panel.6. Water-Resistant Fiber-Reinforced Gypsum B
34、acking Panels6.1 Physical Properties of Water-Resistant Fiber-Reinforced Gypsum Backing Panels:6.1.1 Flexural StrengthThe specimens shall be tested face up and face down. The average breaking load shall be not less thanthe following:Thickness, in. mm Method B, lbf N12 12.7 110 49058 15.9 155 6906.1.
35、2 Humidified DeflectionThe specimens shall have an average deflection of not more than the following:Thickness, in. mm Deflection, eighths of an inch, mm12 12.7 3 1058 15.9 2 66.1.3 Nail Pull ResistanceThe specimens shall have an average nail pull resistance of not less than the following:Thickness,
36、 in. mm Method B, lbf N12 12.7 120 53558 15.9 145 6456.1.4 Water ResistanceThe specimens shall have an average water absorption of not more than 5 weight percentage after 2-himmersion.6.1.5 Surface Water AbsorptionThe specimens shall have an average face surface water absorption of not more than 1.6
37、 g1.6 g after two hours of elapsed time.6.2 Dimensions and Tolerances of Water-Resistant Fiber-Reinforced Gypsum Backing Panel:6.2.1 Specimens shall be taken from samples obtained in accordance with Specification C1264.6.2.1.1 Specimens shall be tested in accordance with Test Methods C473.6.2.2 Thic
38、knessThe nominal thickness shall be 12 or 58 in. 12.7 or 15.9 mm with tolerances of 6164 in. 6 0.4 60.4 mm,and with a local tolerance of 6132 in. 6 0.8 60.8 mm.6.2.3 WidthThe width shall be up to 54 in. 1370 mm, with a tolerance of 332 in. 3 mm under the specified width.6.2.4 End SquarenessCorners s
39、hall be square with a tolerance of 618 in. 6 3 63 mm in the full width of the panel.6.3 EdgesThe edges shall be either square, beveled, featured, tapered, or featured and tapered.7. Exterior Fiber-Reinforced Gypsum Soffit Panels7.1 Physical Properties of Exterior Fiber-Reinforced Gypsum Sofft Panels
40、:7.1.1 Flexural StrengthThe specimens shall be tested face up and face down. The average breaking load shall be not less thanthe following:Thickness, in. mm Method B, lbf N12 12.7 110 49058 15.9 155 6907.1.2 Humidified DeflectionThe specimens shall have an average deflection of not more than the fol
41、lowing:C1278/C1278M 173Thickness, in. mm Deflection, eighths of an inch, mm12 12.7 3 1058 15.9 2 67.1.3 Nail Pull ResistanceThe specimens shall have an average nail pull resistance of not less than the following:Thickness, in. mm Method B, lbf N12 12.7 120 53558 15.9 145 6457.2 Dimensions and Tolera
42、nces of Exterior Fiber-Reinforced Gypsum Sofft Panel:7.2.1 Specimens shall be taken from samples obtained in accordance with Specification C1264.7.2.1.1 Specimens shall be tested in accordance with Test Methods C473.7.2.2 ThicknessThe nominal thickness shall be 12 or 58 in. 12.7 or 15.9 mm with tole
43、rances in the thickness of 6164 in. 60.4 60.4 mm, and with a local tolerance of 6132 in. 6 0.8 mm.60.8 mm.7.2.3 WidthThe width shall be up to 54 in. 1370 mm, with a tolerance of 332 in. 3 mm under the specified width.7.2.4 End SquarenessCorners shall be square with a tolerance of 618 in. 6 3 63 mm i
44、n the full width of the panel.7.3 EdgesThe edges shall be either square, beveled, featured, tapered, or featured and tapered.8. Water-Resistant Exterior Fiber-Reinforced Gypsum Sheathing Panels8.1 Physical Properties of Water-Resistant Exterior Fiber-Reinforced Gypsum Sheathing Panels:8.1.1 Flexural
45、 StrengthThe specimens shall be tested face up and face down. The average breaking load shall be not less thanthe following:Thickness, in. mm Method B, lbf N12 12.7 110 49058 15.9 155 6908.1.2 Humidified DeflectionThe specimens shall have an average deflection of not more than the following:Thicknes
46、s, in. mm Deflection, eighths of an inch, mm12 12.7 3 1058 15.9 2 68.1.3 Nail Pull ResistanceThe specimens shall have an average nail pull resistance of not less than the following:Thickness, in. mm Method B, lbf N12 12.7 120 53558 15.9 145 6458.1.4 Water Resistance of Water-Resistant Exterior Fiber
47、-Reinforced Gypsum Sheathing PanelThe specimens shall have anaverage water absorption of not more than 10 weight percentage after 2-h immersion.8.2 Dimensions and Tolerances of Water-Resistant Exterior Fiber-Reinforced Gypsum Sheathing Panels:8.2.1 Specimens shall be taken from samples obtained in a
48、ccordance with Specification C1264.8.2.1.1 Specimens shall be tested in accordance with Test Methods C473.8.2.2 ThicknessThe nominal thickness shall be from 12 or 58 in. 12.7 or 15.9 mm with tolerances of 6132 in. 6 0.8 60.8mm, and with a local tolerance of 6116 in. 6 1.6 61.6 mm.8.2.3 WidthThe nominal width shall be 24 or 48 in. 610 or 1220 mm, with a tolerance of 18 in. 3.2 mm under the specifiedwidth.8.2.4 End SquarenessCorners shall be square with a tolerance of 618 in. 6 3 63 mm in the full width of the panel.8.3 EdgesThe edges shall be
