ASTM F1315-00

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Designation:F1315–00
Standard Test Method for
Density of a Sheet Gasket Material
This standard is issued under the fixed designation F 1315; 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 usefulness as a production test method. Where it must be
modified for manufacturing control, it is recommended that
1.1 This test method covers a procedure for determining the
thickness and weight measurement methods be adhered to
density of a gasket material.
strictly.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5. Interferences
only.
5.1 Moisture adds to the weight of most gasket specimens,
1.3 This standard does not purport to address all of the
and may cause the material to swell. Proper conditioning of the
safety concerns, if any, associated with its use. It is the
specimen should control moisture as a variable.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
6. Apparatus
bility of regulatory limitations prior to use.
6.1 Thickness—A thickness measurement device actuated
2. Referenced Documents by a dead weight load as specified in Table 1. The presser foot
shall be 6.40 6 0.13 mm (0.252 6 0.005 in.) in diameter. The
2.1 ASTM Standards:
device shall be capable of reading within 1% of the thickness
E 691 Practice for Conducting an Interlaboratory Study to
2 being measured. The anvil shall have a diameter not less than
Determine the Precision of a Test Method
that of the presser foot.
F 104 Classification System for Nonmetallic Gasket Mate-
3 6.2 Weight—An analytical balance accurate to 61% of the
rials
specimen weight.
3. Summary of Test Method
7. Specimen Conditioning
3.1 A die-cut specimen conditioned. Thickness, weight and
7.1 Specimen shall be conditioned in accordance with their
area are measured and the density is calculated and reported.
classification as specified in Classification System F 104 prior
4. Significance and Use to testing.
4.1 Density is an important property of a gasket material,
8. Test Specimen
since it has an inverse relationship to the void volume of the
8.1 Three specimens are to be measured.
material. Density is often used in a specification, since rela-
8.2 Specimen size and shape is left to the discretion of the
tionships to sealability, compressibility, creep relaxation, and
tester. In no case, however, should the area of the specimen be
tensile strength can be found for a given gasket grade.
2 2
less than 25 cm (4 in. ). The area of the specimen shall be
4.2 Density is a measurement of the mass to the volume
measured accurate to 61%. For this reason a die cut specimen
ratio and therefore easily determined with a weight scale and
is required.
thickness measuring device. This test method requires from 1
h to two days of sample conditioning, which is necessary to
9. Procedure
achieve a high level of precision, but which detracts from its
9.1 Remove the specimens one at a time from the condi-
tioning chamber if not in a properly conditioned room, and
This test method is under the jurisdiction ofASTM Committee F03 on Gaskets weigh on the analytical balance, recording the weight.
and is the direct responsibility of Subcommittee F03.20 on Mechanical Test
9.2 Measure area of specimen.
Methods.
9.3 Measu
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