ASTM C1278/C1278M-03e1

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Designation: C 1278/C 1278M – 03
Standard Specification for
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Fiber-Reinforced Gypsum Panel
This standard is issued under the fixed designation C 1278/C 1278M; the number immediately following the designation indicates the
year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last
reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
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e NOTE—The word rating(s) was added to the term fire resistance throughout editorially October 2004.
1. Scope* 2. Referenced Documents
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1.1 This specification covers fiber-reinforced gypsum pan- 2.1 ASTM Standards:
els described in 1.1.1-1.1.4. C 11 Terminology Relating to Gypsum and Related Build-
1.1.1 Interior Fiber-Reinforced Gypsum Panels are de- ing Materials and Systems
signed to be used for walls, ceilings, or partitions and affords C 22 Specification for Gypsum
a suitable surface to receive decoration. C 473 Test Methods for Physical Testing of Gypsum Panel
1.1.2 Water-Resistant Fiber-Reinforced Gypsum Backing Products
Panels are designed primarily to be used as a base for the C 645 Specification for Nonstructural Steel Framing Mem-
application of ceramic or plastic tile on walls or ceilings. This bers
product is also suitable for decoration. C 1264 Specification for Sampling, Inspection, Rejection,
1.1.3 Exterior Fiber-Reinforced Gypsum Soffıt Panels are Certification, Packaging, Marking, Shipping, Handling,
designed for use on exterior soffits and carport ceilings that are and Storage of Gypsum Board
completely protected from contact with liquid water. E 84 Test Method for Surface Burning Characteristics of
1.1.4 Water-Resistant Exterior Fiber-Reinforced Gypsum Building Materials
Sheathing Panels are designed for use as sheathing on build- E 96 Test Methods for Water Vapor Transmission of Mate-
ings. rials
1.2 Specifications applicable to all fiber-reinforced gypsum E 119 Test Methods for Fire Tests of Building Construction
panels are located in Sections 1-4 and 9-11 except as modified and Materials
by applicable product sections. Specifications applicable to
3. Terminology
specific panels are located in the following sections:
3.1 Definitions—Definitions of terms shall be in accordance
Interior Fiber-Reinforced Gypsum Panels 5
Water-Resistant Fiber-Reinforced Gypsum Backing Panels 6
with Terminology C 11.
Exterior Fiber-Reinforced Gypsum Soffit Panels 7
Water-Resistant Exterior Fiber-Reinforced Gypsum Sheathing Panels 8
4. Materials and Manufacture
1.3 The values stated in either inch-pound units or SI
4.1 Fiber-reinforced gypsum panels shall consist essentially
(metric) are to be regarded separately as the standard. Within
of gypsum with fibers dispersed throughout.
the text, the SI units are shown in brackets. The values stated
4.1.1 Gypsum—Specification C 22.
in each system shall be used independently of the other. Values
4.1.2 Fibers—Cellulose, derived from paper, paperboard
from the two systems shall not be combined.
stock, wood, or other organic material.
1.4 The text of this specification references notes and
4.2 Thebacksurfaceoffoil-backedfiber-reinforcedgypsum
footnotes that provide explanatory material. These notes and
panels shall in addition be covered with aluminum foil.
footnotes shall not be considered as requirements of the
4.3 Water-resistant fiber-reinforced gypsum panels shall be
standard.
treated with a material that imparts water resistance through-
out.
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This specification is under the jurisdiction of ASTM Committee C11 on
Gypsum and Related Building Materials and Systems and is the direct responsi-
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bility of Subcommittee C11.01 on Specifications and Test Methods for Gypsum For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Products. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Current edition approved Oct. 1, 2003. Published November 2003. Originally Standards volume information, refer to the standard’s Document Summary page on
approvedin1994.Lastpreviouseditionapprovedin2001asC 1278/C 1278M – 01. the ASTM website.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C 1278/C 1278M – 03
4.4 Fiber-reinforced gypsum panels, type X (special fire-
Thickness, in. [mm] Method B, lbf [N]
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⁄4 [6.4] 40 [180]
resistant)designatesfiber-reinforcedgypsumpanelscomplying
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⁄16 [7.9] 50 [220]
with this specification that provide not less than 1-h fire
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⁄8 [9.5] 75 [335]
5 3
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resistance rating for panels ⁄8-in. [15.9-mm] thick or ⁄4-h fire
⁄2 [12.7] 120 [535]
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1 ⁄8 [15.9] 145 [645]
resistance rating for panels ⁄2-in. [12.7-mm] thick, applied
parallel
...