ASTM D3759/D3759M-04
(Test Method)Standard Test Method for Tensile Strength and Elongation of Pressure-Sensitive Tapes
Standard Test Method for Tensile Strength and Elongation of Pressure-Sensitive Tapes
SCOPE
1.1 This test method covers the measurement of tensile strength (breaking strength) and stretch properties (elongation and "F" value) for pressure-sensitive tapes. It includes procedures for machine direction cross-direction tests and tests for tapes with low and high stretch and reinforced backings. It also includes a procedure for obtaining stretch force ("F" value) in conjunction with a determination of tensile strength. These procedures employ a constant-rate-of-extension (CRE)-type testing machine. They apply to the principle of stretching the specimen at a fixed strain rate of 25 mm per 25 mm [1 in. per inch] of specimen length per minute with the exception of the procedure for reinforced tapes.
1.2 The values stated in either SI or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system must be used independently, without combining values in any way.
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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Designation: D 3759/D 3759M – 04
Standard Test Method for
Tensile Strength and Elongation of Pressure-Sensitive
1
Tapes
This standard is issued under the fixed designation D 3759/D 3759M; 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 D 4332 Practice for Conditioning Containers, Packages, or
Packaging Components for Testing
1.1 This test method covers the measurement of tensile
E4 Practices for Force Verification of Testing Machines
strength (breaking strength) and stretch properties (elongation
E 122 Practice for Choice of Sample Size to Estimate a
and “F” value) for pressure-sensitive tapes. It includes proce-
Measure of Quality for a Lot or Process
dures for machine direction cross-direction tests and tests for
tapes with low and high stretch and reinforced backings. It also
3. Terminology
includes a procedure for obtaining stretch force (“F” value) in
3.1 Terminology found in Terminology D 996 shall apply.
conjunction with a determination of tensile strength. These
procedures employ a constant-rate-of-extension (CRE)-type
4. Significance and Use
testing machine. They apply to the principle of stretching the
4.1 This test method provides information that can be used
specimen at a fixed strain rate of 25 mm per 25 mm [1 in. per
in material specifications for product design and quality
inch] of specimen length per minute with the exception of the
assurance applications. It can be used in comparing different
procedure for reinforced tapes.
products.
1.2 The values stated in either SI or inch-pound units are to
4.2 The use of this test method must be related to the
be regarded separately as standard. The values stated in each
purpose for which the test is performed. One purpose is for
system may not be exact equivalents; therefore, each system
determiningtherelativestrengthofthetapeinthesizeinwhich
must be used independently, without combining values in any
it is purchased or used. Another purpose is to identify or
way.
characterize a particular backing material.
1.3 This standard does not purport to address all of the
4.2.1 When relative strength is of interest, the test may be
safety concerns, if any, associated with its use. It is the
performed on the tape as-received, that is, without cutting the
responsibility of the user of this standard to establish appro-
material to a specimen width less than the as-received width.
priate safety and health practices and determine the applica-
4.2.1.1 Usuallytapeswiderthan48mm[2in.]arenottested
bility of regulatory limitations prior to use.
due principally to the limitations of equipment. Tapes as
2. Referenced Documents narrow as approximately 3 mm [0.125 in.] can be tested.
2 4.2.1.2 Comparison of materials by different test methods
2.1 ASTM Standards:
should be avoided because the test parameters of specimen
D 828 Test Method for Tensile Properties of Paper and
dimensions and cross head velocity determine the outcome.
Paperboard Using Constant-Rate-of-Elongation Apparatus
Changes in the parameter levels will produce different results
D 882 Test Method for Tensile Properties of Thin Plastic
for the same material.
Sheeting
D 996 Terminology of Packaging and Distribution Environ-
NOTE 1—It is usual to find the tensile strength increasing significantly
ments with increasing cross head velocity and, therefore, strain rate.
D 3715 Practice for Quality Assurance of Pressure-
4.2.2 When identity or material characterization is of inter-
Sensitive Tapes
est,thetestshouldbeperformedonaspecimencutfromwithin
the sample material boundaries using a sharp razor cutter, such
as that defined in Section 5.
1
This test method is under the jurisdiction of ASTM Committee D10 on
Packaging and is the direct responsibility of Subcommittee D10.14 on Tape and
NOTE 2—Some of the traditional tools for specimen preparation must
Labels.
be avoided when the backing is comprised of thin plastic sheeting. These
Current edition approved April 1, 2004. Published May 2004. Originally
include chopping dies and sample cutters operating on a shearing
e1
approved in 1983. Last previous edition approved in 1996 as D 3759 – 96 .
2 principle.The reason for this restraint is that edges sufficiently ragged and
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
damaged resulting from chopping or shearing cause tearing to occur
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
before the true tensile strength level is reached. Tapes with fibrous
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. backings may
...
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