ASTM F152-95

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn. Contact ASTM International (www.astm.org) for the latest information.
Designation: F 152 – 95
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Methods for
1
Tension Testing of Nonmetallic Gasket Materials
This standard is issued under the fixed designation F 152; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 3.1.3 tensile strength—the maximum tensile stress applied
during stretching a specimen to rupture.
1.1 These test methods cover the determination of tensile
3.1.4 tensile stress—the applied force per unit or original
strength of certain nonmetallic gasketing materials at room
cross-sectional area of the specimen.
temperature. The types of materials covered are those contain-
ing asbestos and other inorganic fibers (Type 1), cork (Type 2),
4. Significance and Use
cellulose or other organic fiber (Type 3), and flexible graphite
4.1 These test methods are described in order to standardize
(Type 5) as described in Classification F 104. These test
procedures for determining the tensile strength of nonmetallic
methods are not applicable to the testing of vulcanized rubber,
gasket materials. The measurement of this property character-
a method for which is described in Test Methods D 412 nor for
izes various classes and grades of materials of a given type and
rubber O-rings, a method for which is described in Test
in so doing it will give the manufacturer a measurement of the
Methods D 1414.
quality of his product. It also will aid the purchaser of the
1.2 The values stated in SI units are to be regarded as the
gasketing materials to be able to determine whether the gasket
standard. The values in parentheses are for information only.
material that he has approved for a given application is being
1.3 This standard does not purport to address all of the
manufactured in acceptable quality.
safety concerns, if any, associated with its use. It is the
4.2 The measurement of this property should not be mis-
responsibility of the user of this standard to establish appro-
construed as to give the purchaser of the gasket material an
priate safety and health practices and determine the applica-
indication of the performance of that material in application.
bility of regulatory limitations prior to use.
4.3 The property may be useful in establishing material
2. Referenced Documents specifications.
4.4 Various procedures are given for the different types of
2.1 ASTM Standards:
materials, and in order to compare the results from one
D 412 Test Methods for Vulcanized Rubber and Thermo-
2 laboratory to another it is imperative that the applicable
plastic Rubbers and Thermoplastic Elastomers— Tension
3
procedure be selected.
D 1414 Test Methods for Rubber O-Rings
4 4.5 Various types of tension-testing apparatus are allowed to
E 4 Practices for Force Verification of Testing Machines
be used. These types of equipment can produce different
E 691 Practice for Conducting an Interlaboratory Study to
5 indicated results. Laboratories having different equipment may
Determine the Precision of a Test Method
have to establish correlations between each other; otherwise,
F 104 Classification System for Nonmetallic Gasket Mate-
3 misinterpretation of the test data could result.
rials
5. Apparatus
3. Terminology
5.1 Dies—The inside faces of the dies shall be polished and
3.1 Definitions:
be perpendicular to the plane formed by the cutting edges for
3.1.1 sample—a unit or section of a unit taken from a
a depth of at least 5 mm (0.2 in.). The dies shall be sharp and
sampling lot.
free of nicks in order to prevent ragged edges on the specimen.
3.1.2 specimen—a piece of material appropriately shaped
5.2 Dial Micrometers—In accordance with 9.1 of Classifi-
and prepared so that it is ready for a test.
cation F 104.
5.3 Testing Machine—Tension tests shall be made on a
1
These test methods are under the jurisdiction of ASTM Committee F-3 on
power-driven machine, so equipped that a constant rate of grip
Gaskets and are the direct responsibility of Subcommittee F03.20 on Methods of
separation shall be maintained, and with an indicating or
Test.
recording device for measuring the resulting force within
Current edition approved Jan. 15, 1995. Published March 1995. Originally
published as F152 – 72. Last previous edition F152 – 93.
62 %. The tester shall have two grips and a mechanism for
2
Annual Book of ASTM Standards, Vol 09.01.
separating the grips at a uniform rate, which will be maintained
3
Annual Book o
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