ASTM F1315-17
(Test Method)Standard Test Method for Density of a Sheet Gasket Material
Standard Test Method for Density of a Sheet Gasket Material
SIGNIFICANCE AND USE
4.1 Density is an important property of a gasket material, since it has an inverse relationship to the void volume of the material. Density is often used in a specification, since relationships to sealability, compressibility, creep relaxation, and tensile strength can be found for a given gasket grade.
4.2 Density is a measurement of the mass to the volume ratio and therefore easily determined with a weight scale and thickness measuring device. This test method requires from 1 h to two days of sample conditioning, which is necessary to achieve a high level of precision, but which detracts from its usefulness as a production test method. Where it must be modified for manufacturing control, it is recommended that thickness and weight measurement methods be adhered to strictly.
SCOPE
1.1 This test method covers a procedure for determining the density of a gasket material.
1.2 The values stated in SI units are to be regarded as the standard. The values given 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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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F1315 − 17
Standard Test Method for
1
Density of a Sheet Gasket Material
This standard is issued under the fixed designation F1315; 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 h to two days of sample conditioning, which is necessary to
achieve a high level of precision, but which detracts from its
1.1 This test method covers a procedure for determining the
usefulness as a production test method. Where it must be
density of a gasket material.
modified for manufacturing control, it is recommended that
1.2 The values stated in SI units are to be regarded as the
thickness and weight measurement methods be adhered to
standard. The values given in parentheses are for information
strictly.
only.
5. Interferences
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
5.1 Moisture adds to the weight of most gasket specimens,
responsibility of the user of this standard to establish appro-
and may cause the material to swell. Proper conditioning of the
priate safety and health practices and determine the applica-
specimen should control moisture as a variable.
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents
6.1 Thickness—A thickness measurement device actuated
2
2.1 ASTM Standards:
by a dead weight load as specified in Table 1. The presser foot
E691 Practice for Conducting an Interlaboratory Study to
shall be 6.40 6 0.13 mm (0.252 6 0.005 in.) in diameter. The
Determine the Precision of a Test Method
device shall be capable of reading within 1 % of the thickness
F104 Classification System for Nonmetallic Gasket Materi-
being measured. The anvil shall have a diameter not less than
als
that of the presser foot.
6.2 Weight—An analytical balance accurate to 61%ofthe
3. Summary of Test Method
specimen weight.
3.1 A die-cut specimen is conditioned. Thickness, weight,
and area are measured, and the density is calculated and
7. Specimen Conditioning
reported.
7.1 Specimen shall be conditioned in accordance with their
classification as specified in Classification System F104 prior
4. Significance and Use
to testing.
4.1 Density is an important property of a gasket material,
since it has an inverse relationship to the void volume of the
8. Test Specimen
material. Density is often used in a specification, since rela-
8.1 Three specimens are to be measured.
tionships to sealability, compressibility, creep relaxation, and
tensile strength can be found for a given gasket grade.
8.2 Specimen size and shape is left to the discretion of the
tester. In no case, however, should the area of the specimen be
4.2 Density is a measurement of the mass to the volume
2 2
less than 25 cm (4 in. ). The area of the specimen shall be
ratio and therefore easily determined with a weight scale and
measured accurate to 61 %. For this reason a die cut specimen
thickness measuring device. This test method requires from 1
is required.
1
This test method is under the jurisdiction ofASTM Committee F03 on Gaskets 9. Procedure
and is the direct responsibility of Subcommittee F03.20 on Mechanical Test
9.1 Remove the specimens one at a time from the condi-
Methods.
Current edition approved Feb. 1, 2017. Published February 2017. Originally tioning chamber if not in a properly conditioned room, and
approved in 1990. Last previous edition approved in 2014 as F1315 – 00 (2014).
weigh on the analytical balance, recording the weight.
DOI: 10.1520/F1315-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 9.2 Measure area of specimen.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
9.3 Measure the thickness of the specimen using the proper
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. size presser foot and dead weight as specified in Table 1. The
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F1315 − 17
TABLE 1 Applied Pressures
T = thickness of specimen, mm, and
2
Type of Material (First Total Force on Presser
A = area of specimen, cm .
Pressure on Specimen,
Numeral of Six Digit Foot, N (oz) (refer-
kPa (psi)
Number (from F104)) ence)
11. Report
1, 5, or 7 80.3 ± 6.9 (11.5 ± 1.0) 2.50 (9.0)
2or4 35±6.9(5.1±1.0) 1.11(4.0)
11.1 Report the following information:
3 55
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1315 − 00 (Reapproved 2014) F1315 − 17
Standard Test Method for
1
Density of a Sheet Gasket Material
This standard is issued under the fixed designation F1315; 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
1.1 This test method covers a procedure for determining the density of a gasket material.
1.2 The values stated in SI units are to be regarded as the standard. The values given 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.
2. Referenced Documents
2
2.1 ASTM Standards:
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
F104 Classification System for Nonmetallic Gasket Materials
3. Summary of Test Method
3.1 A die-cut specimen is conditioned. Thickness, weight, and area are measured, and the density is calculated and reported.
4. Significance and Use
4.1 Density is an important property of a gasket material, since it has an inverse relationship to the void volume of the material.
Density is often used in a specification, since relationships to sealability, compressibility, creep relaxation, and tensile strength can
be found for a given gasket grade.
4.2 Density is a measurement of the mass to the volume ratio and therefore easily determined with a weight scale and thickness
measuring device. This test method requires from 1 h to two days of sample conditioning, which is necessary to achieve a high
level of precision, but which detracts from its usefulness as a production test method. Where it must be modified for manufacturing
control, it is recommended that thickness and weight measurement methods be adhered to strictly.
5. Interferences
5.1 Moisture adds to the weight of most gasket specimens, and may cause the material to swell. Proper conditioning of the
specimen should control moisture as a variable.
6. Apparatus
6.1 Thickness—A thickness measurement device actuated 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 device shall be capable of reading within 1 % of the thickness being
measured. The anvil shall have a diameter not less than that of the presser foot.
6.2 Weight—An analytical balance accurate to 61 % of the specimen weight.
7. Specimen Conditioning
7.1 Specimen shall be conditioned in accordance with their classification as specified in Classification System F104 prior to
testing.
1
This test method is under the jurisdiction of ASTM Committee F03 on Gaskets and is the direct responsibility of Subcommittee F03.20 on Mechanical Test Methods.
Current edition approved March 1, 2014Feb. 1, 2017. Published April 2014February 2017. Originally approved in 1990. Last previous edition approved in 20062014 as
F1315 – 00 (2006).(2014). DOI: 10.1520/F1315-00R14.10.1520/F1315-17.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
F1315 − 17
TABLE 1 Applied Pressures
Type of Material (First Total Force on Presser
Pressure on Specimen,
Numeral of Six Digit Foot, N (oz) (refer-
kPa (psi)
Number (from F104)) ence)
1, 5, or 7 80.3 ± 6.9 (11.5 ± 1.0) 2.50 (9.0)
2 or 4 35 ± 6.9 (5.1 ± 1.0) 1.11 (4.0)
3 55 ± 6.9 (8.0 ± 1.0) 1.75 (6.3)
A
0 or 9 55 ± 6.9 (8.0 ± 1.0) 1.75 (6.3)
A
Unless otherwise specified on engineering drawing or other supplement to this
test method.
8. Test Specimen
8.1 Three specimens are to be measured.
8.2 Specimen size and shape is left to the discretion of the tester. In no case, however, should the area of the specimen be less
2 2
than 25 cm (4 in. ). The area of the specimen shall be measured accurate to 61 %. For this reason a die cut specimen is required.
9. Procedure
9.1 Remove the specimens one at a time from the conditioning c
...
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