ASTM C1395/C1395M-01

Specification for Gypsum Ceiling Board

SCOPE
1.1 This specification covers 1/2 in. (12.7 mm) thick gypsum ceiling board designed for use on interior ceilings with framing spaced not more than 24 in. (610 mm) on center and that affords a surface suitable to receive water-based texture and other decoration. This product is also suitable for use on interior walls.
Note 1--Specification C840 contains application procedures for gypsum ceiling board.
1.2 The values stated in either inch-pound units or SI (metric) are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system shall be used independent of the other. Values from the two systems shall not be combined.

General Information

• Status: Historical
• Publication Date: 09-May-2001
• ICS: 91.060.10 - Walls. Partitions. Facades
• ICS: 91.100.10 - Cement. Gypsum. Lime. Mortar
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.01 - Specifications and Test Methods for Gypsum Products

Relations

• Replaces: ASTM C1395/C1395M-98 - Specification for Gypsum Ceiling Board
• Effective Date: 10-May-2001
• Replaced By: ASTM C1395/C1395M-04 - Specification for Gypsum Ceiling Board
• Effective Date: 01-Jan-2004

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1395/C 1395M – 01
Specification for
1
Gypsum Ceiling Board
This standard is issued under the fixed designation C 1395/C 1395M; 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.
1. Scope * 4. Materials and Manufacture
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1.1 This specification covers ⁄2 in. [12.7 mm] thick gypsum 4.1 Gypsum ceiling board shall consist of a noncombustible
ceiling board designed for use on interior ceilings with framing core, essentially gypsum, surfaced with paper bonded to the
spaced not more than 24 in. [610 mm] on center and that core.
affords a surface suitable to receive water–based texture and 4.2 Gypsum ceiling board, type X (special fire-resistant),
other decoration. This product is also suitable for use on designates gypsum ceiling board complying with this specifi-
3
interior walls. cation that provides not less than ⁄4 h fire–resistance for boards
applied parallel with and on each side of load bearing 2 3 4
NOTE 1—Specification C 840 contains application procedures for gyp-
wood studs spaced 16 in. [406 mm] on centers with 6d coated
sum ceiling board.
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nails, 1 ⁄8 in. [48 mm] long, 0.0915 in. [2.3 mm] diameter
1.2 The values stated in either inch–pound units or SI
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shank, ⁄4 in. [6.4 mm] diameter heads, spaced 7 in. [178 mm]
(metric) are to be regarded separately as standard. Within the
on centers with gypsum board joints staggered 16 in. [406 mm]
text, the SI units are shown in brackets. The values stated in
on each side of the partition and tested in accordance with Test
each system shall be used independent of the other. Values
Methods E 119.
from the two systems shall not be combined.
NOTE 2—Consult producers for independent test data on assembly
2. Referenced Documents details and fire resistance classifications for other types of construction.
See fire test reports or listings from recognized fire testing laboratories for
2.1 ASTM Standards:
assembly particulars, materials, and classifications.
C 11 Terminology Relating to Gypsum and Related Build-
2
4.3 Gypsum ceiling board shall have a flame spread index of
ing Materials and Systems
not more than 25 when tested in accordance with Test Method
C 473 Test Methods for Physical Testing of Gypsum Panel
2
E 84.
Products
C 645 Specification for Nonstructural Steel Framing Mem-
5. Physical Properties
2
bers
5.1 Specimens shall be taken from the samples obtained in
C 840 Specification for Application and Finishing of Gyp-
2
accordance with Specification C 1264.
sum Board
5.1.1 Specimens shall be tested in accordance with Test
C 1264 Specification for Sampling, Inspection, Rejection,
Methods C 473.
Certification, Packaging, Marking, Shipping, Handling,
2 5.1.2 Flexural Strength—The specimens shall be tested face
and Storage of Gypsum Board
up and face down. The average breaking load shall be not less
E 84 Test Methods for Surface Burning Characteristics of
3 than that given in Table 1.
Building Materials
5.1.3 Humidified Deflection—The specimens shall have an
E 119 Test Methods for Fire Tests of Building Construction
5
3
average deflection of not more than ⁄16 in. [8 mm].
and Materials
5.1.4 Core, End, and Edge Hardness—The specimens shall
3. Terminology have an average hardness of not less than 15 lbf [67 N] when
tested by Method A and 11 lbf [49 N] when tested by Method
3.1 Definitions used in this specification shall be in accor-
B.
dance with Terminology C 11.
5.1.5 Nail Pull Resistance—The specimens shall have an
average nail–pull resistance of not less 80 lbf [356 N] when
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This test method is under the jurisdiction of ASTM C11 on Gypsum and
tested by Method A and 77 lbf [343 N] when tested by Method
Related Building Materials and Systems and is the direct responsibility of
B.
Subcommittee C11.01 on Specifications and Test Methods for Gypsum Products.
Current edition approved May 10, 2001. Published August 2001. Originally
published as C 1395/C 1395M-98. Last previous edition C 1395/C 1395M-98.
2
Annual Book of ASTM Standards, Vol 04.01.
3
Annual Book of ASTM Standards, Vol 04.07.
*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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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1395/C 1395M
TABLE 1 Flexural Strength
[0.51 mm] but not more than 0.090 in. [2.29 mm] less than the
METHOD A METHOD B average thickness of the gypsum ceiling board.
Load,
...