ASTM F152-95(2009)
(Test Method)Standard Test Methods for Tension Testing of Nonmetallic Gasket Materials
Standard Test Methods for Tension Testing of Nonmetallic Gasket Materials
SIGNIFICANCE AND USE
These test methods are described in order to standardize procedures for determining the tensile strength of nonmetallic gasket materials. The measurement of this property characterizes various classes and grades of materials of a given type and in so doing, it will give the manufacturer a measurement of the quality of his product. It also will aid the purchaser of the gasketing materials to be able to determine whether the gasket material that he has approved for a given application is being manufactured in acceptable quality.
The measurement of this property should not be misconstrued as to give the purchaser of the gasket material an indication of the performance of that material in application.
The property may be useful in establishing material specifications.
Various procedures are given for the different types of materials, and in order to compare the results from one laboratory to another, it is imperative that the applicable procedure be selected.
Various types of tension-testing apparatus are allowed to be used. These types of equipment can produce different indicated results. Laboratories having different equipment may have to establish correlations between each other; otherwise, misinterpretation of the test data could result.
SCOPE
1.1 These test methods cover the determination of tensile strength of certain nonmetallic gasketing materials at room temperature. The types of materials covered are those containing asbestos and other inorganic fibers (Type 1), cork (Type 2), cellulose or other organic fiber (Type 3), and flexible graphite (Type 5) as described in Classification F 104. These test methods are not applicable to the testing of vulcanized rubber, a method for which is described in Test Methods D 412 nor for rubber O-rings, a method for which is described in Test Methods D 1414.
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F152 − 95 (Reapproved 2009)
Standard Test Methods for
Tension Testing of Nonmetallic Gasket Materials
ThisstandardisissuedunderthefixeddesignationF152;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) 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 3.1.1 sample—a unit or section of a unit taken from a
sampling lot.
1.1 These test methods cover the determination of tensile
strength of certain nonmetallic gasketing materials at room 3.1.2 specimen—a piece of material appropriately shaped
temperature. The types of materials covered are those contain-
and prepared so that it is ready for a test.
ing asbestos and other inorganic fibers (Type 1), cork (Type 2),
3.1.3 tensile strength—the maximum tensile stress applied
cellulose or other organic fiber (Type 3), and flexible graphite
during stretching a specimen to rupture.
(Type 5) as described in Classification F104. These test
3.1.4 tensile stress—the applied force per unit or original
methods are not applicable to the testing of vulcanized rubber,
cross-sectional area of the specimen.
a method for which is described in Test Methods D412 nor for
rubber O-rings, a method for which is described in Test
4. Significance and Use
Methods D1414.
4.1 These test methods are described in order to standardize
1.2 The values stated in SI units are to be regarded as the
procedures for determining the tensile strength of nonmetallic
standard. The values in parentheses are for information only.
gasket materials. The measurement of this property character-
1.3 This standard does not purport to address all of the
izes various classes and grades of materials of a given type and
safety concerns, if any, associated with its use. It is the
in so doing, it will give the manufacturer a measurement of the
responsibility of the user of this standard to establish appro-
quality of his product. It also will aid the purchaser of the
priate safety and health practices and determine the applica-
gasketing materials to be able to determine whether the gasket
bility of regulatory limitations prior to use.
material that he has approved for a given application is being
manufactured in acceptable quality.
2. Referenced Documents
2.1 ASTM Standards: 4.2 The measurement of this property should not be mis-
D412 Test Methods forVulcanized Rubber andThermoplas- construed as to give the purchaser of the gasket material an
tic Elastomers—Tension indication of the performance of that material in application.
D1414 Test Methods for Rubber O-Rings
4.3 The property may be useful in establishing material
E4 Practices for Force Verification of Testing Machines
specifications.
E691 Practice for Conducting an Interlaboratory Study to
4.4 Various procedures are given for the different types of
Determine the Precision of a Test Method
materials, and in order to compare the results from one
F104 Classification System for Nonmetallic Gasket Materi-
laboratory to another, it is imperative that the applicable
als
procedure be selected.
3. Terminology
4.5 Varioustypesoftension-testingapparatusareallowedto
3.1 Definitions:
be used. These types of equipment can produce different
indicated results. Laboratories having different equipment may
have to establish correlations between each other; otherwise,
These test methods are under the jurisdiction of ASTM Committee F03 on
misinterpretation of the test data could result.
Gaskets and are the direct responsibility of Subcommittee F03.20 on Mechanical
Test Methods.
Current edition approved May 1, 2009. Published May 2009. Originally
5. Apparatus
approved in 1972. Last previous edition approved in 2002 as F152 – 95 (2002).
DOI: 10.1520/F0152-95R09.
5.1 Dies—The inside faces of the dies shall be polished and
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
be perpendicular to the plane formed by the cutting edges for
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
a depth of at least 5 mm (0.2 in.). The dies shall be sharp and
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. free of nicks in order to prevent ragged edges on the specimen.
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F152 − 95 (2009)
5.2 Dial Micrometers—In accordance with 9.1 of Classifi- 7.2.2 Place the specimens in the jaws so that a 25.4-mm
cation F104. (1-in.) length is gripped and drive the jaw at 305 6 25 mm (12
6 1 in.)/min.
5.3 Testing Machine—Tension tests shall be made on a
power-driven machine, so equipped that a constant rate of grip 7.3 Method C, for Cellulosic or Other Organic Fiber-
separation shall be maintained, and with an indicating or Containing Gasket Materials:
recording device for measuring the resulting force within 7.3.1 The specimens shall be 25.4 by 152.4 mm (1 by 6 in.).
62 %. The tester shall have two grips and a mechanism for The lengthwise dimension shall be perpendicular to the grain
separating the grips at a uniform rate, which will be maintained direction of the material.
during the test within 65 % of the desired rate of separation. 7.3.2 Place them in the machine with a 102-mm (4-in.)
The grips shall be either wedged or toggle type, designed to distance between the jaws and drive the jaw at 305 6 25 mm
transmit the applied force over a large surface area of the (12 6 1 in.)/min. Specimens of 12.7-mm (0.50-in.) width may
specimen. be used where necessary to
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