ASTM C1278/C1278M-07a

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Designation: C1278/C1278M – 07a
Standard Specification for
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Fiber-Reinforced Gypsum Panel
This standard is issued under the fixed designation C1278/C1278M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope* 1.4 The text of this specification references notes and
footnotes that provide explanatory material. These notes and
1.1 This specification covers fiber-reinforced gypsum pan-
footnotes shall not be considered as requirements of the
els described in 1.1.1-1.1.4.
standard.
1.1.1 Interior Fiber-Reinforced Gypsum Panels are de-
signed to be used for walls, ceilings, or partitions and affords
2. Referenced Documents
a suitable surface to receive decoration.
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2.1 ASTM Standards:
1.1.2 Water-Resistant Fiber-Reinforced Gypsum Backing
C11 TerminologyRelatingtoGypsumandRelatedBuilding
Panels are designed primarily to be used as a base for the
Materials and Systems
application of ceramic or plastic tile on walls or ceilings. This
C22/C22M Specification for Gypsum
product is also suitable for decoration.
C473 Test Methods for Physical Testing of Gypsum Panel
1.1.3 Exterior Fiber-Reinforced Gypsum Soffıt Panels are
Products
designed for use on exterior soffits and carport ceilings that are
C645 Specification for Nonstructural Steel Framing Mem-
completely protected from contact with liquid water.
bers
1.1.4 Water-Resistant Exterior Fiber-Reinforced Gypsum
C1264 Specification for Sampling, Inspection, Rejection,
Sheathing Panels are designed for use as sheathing on build-
Certification, Packaging, Marking, Shipping, Handling,
ings.
and Storage of Gypsum Panel Products
1.1.5 Interior Fiber-Reinforced Gypsum Underlayment
D1037 Test Methods for Evaluating Properties of Wood-
Panelsaredesignedforuseasabaseforapplicationoffinished
Base Fiber and Particle Panel Materials
flooring materials.
E84 Test Method for Surface Burning Characteristics of
1.1.6 Fiber-Reinforced Gypsum Board Panels are designed
Building Materials
for use in roofing systems.
E96/E96M Test Methods for Water Vapor Transmission of
1.2 Specifications applicable to all fiber-reinforced gypsum
Materials
panelsarelocatedinSections1-4and11-13exceptasmodified
E119 Test Methods for Fire Tests of Building Construction
by applicable product sections. Specifications applicable to
and Materials
specific panels are located in the following sections:
Interior Fiber-Reinforced Gypsum Panels 5
3. Terminology
Water-Resistant Fiber-Reinforced Gypsum Backing Panels 6
Exterior Fiber-Reinforced Gypsum Soffit Panels 7
3.1 Definitions—Definitions of terms shall be in accordance
Water-Resistant Exterior Fiber-Reinforced Gypsum Sheathing Panels 8
with Terminology C11.
Interior Fiber-Reinforced Gypsum Underlayment Panels 9
3.1.1 nominal thickness, n—the manufacturer-stated frac-
Fiber-Reinforced Gypsum Roof Board Panels 10
tional value of thickness of the gypsum panel product ex-
1.3 The values stated in either inch-pound units or SI
pressed in decimal value to the nearest one-thousandth (0.001)
(metric) are to be regarded separately as the standard. Within
of an inch.
the text, the SI units are shown in brackets. The values stated
in each system shall be used independently of the other. Values
4. Materials and Manufacture
from the two systems shall not be combined.
4.1 Fiber-reinforced gypsum panels shall consist essentially
of gypsum with fibers dispersed throughout.
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4.1.1 Gypsum—Specification C22/C22M.
This specification is under the jurisdiction of ASTM Committee C11 on
Gypsum and Related Building Materials and Systems and is the direct responsi-
bility of Subcommittee C11.01 on Specifications and Test Methods for Gypsum
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Products. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 15, 2007. Published October 2007. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1994. Last previous edition approved in 2007 as C1278/C1278M – 07. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/C1278_C1278M-07A. 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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C1278/C1278M – 07a
4.1.2 Fibers—Cellulose, derived from paper, paperboard
Thickness, in. [mm] Deflection, eighths of an inch, [mm]
1
⁄2 [12.7] 3 [10]
stock, wood, or other organic material.
5
⁄8 [15.9] 2 [6]
4.2 Thebacksurfaceoffoil-backedfiber-reinforcedgypsum
5.1.3 Nail Pull Resistance—Th
...