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ASTM D3811/D3811M-96(2001)

(Test Method)

Standard Test Method for Unwind Force of Pressure-Sensitive Tapes

Standard Test Method for Unwind Force of Pressure-Sensitive Tapes

SCOPE
1.1 This test method provides one procedure for determining the force required to unwind a roll of pressure-sensitive tape.  
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.  
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.

General Information

Status
Historical
Publication Date
09-Mar-1996
ICS
55.040 - Packaging materials and accessories
Technical Committee
D10 - Packaging
Drafting Committee
D10.14 - Tape and Labels
Current Stage
Ref Project

Relations

Replaced By
ASTM D3811/D3811M-96(2006) - Standard Test Method for Unwind Force of Pressure-Sensitive Tapes
Effective Date
10-Mar-1996

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ASTM D3811/D3811M-96(2001) - Standard Test Method for Unwind Force of Pressure-Sensitive TapesASTM D3811/D3811M-96(2001) - Standard Test Method for Unwind Force of Pressure-Sensitive Tapes
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ASTM D3811/D3811M-96(2001) - Standard Test Method for Unwind Force of Pressure-Sensitive Tapes
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D3811/D3811M–96 (Reapproved 2001)
Standard Test Method for
Unwind Force of Pressure-Sensitive Tapes
This standard is issued under the fixed designation D 3811/D 3811M; 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 (ε) 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 maximum force measured during unwinding of approximately
150 mm [6 in.] of tape is taken as the unwind force.
1.1 This test method provides one procedure for determin-
ing the force required to unwind a roll of pressure-sensitive
5. Significance and Use
tape.
5.1 This procedure simulates hand and machine unwinding
1.2 The values stated in either SI or inch-pound units are to
of tape at low rates. The force required for unwinding at low
be regarded separately as standard. The values stated in each
ratesisafunctionofrate.Atsomerate(expectedtobedifferent
system may not be exact equivalents; therefore, each system
for each construction type and manufacturer) there occurs an
must be used independently, without combining values in any
inversionoftheresponse.Therateforthistestmethoddoesnot
way.
allow for comparisons of different tapes that will be unwound
1.3 This standard does not purport to address all of the
at high rates.
safety concerns, if any, associated with its use. It is the
5.2 This procedure can be used to indicate satisfaction
responsibility of the user of this standard to establish appro-
where a specification for unwind, either maximum or mini-
priate safety and health practices and determine the applica-
mum, is established and when the responses referred to in 5.1
bility of regulatory limitations prior to use.
are taken into consideration.
2. Referenced Documents
6. Apparatus
2.1 ASTM Standards:
6.1 Unwind Force Tester—A CRE tension tester shall be
D 996 Terminology of Packaging and Distribution Environ-
used.The tester shall have two clamps with centers in the same
ments
plane, parallel with the direction of motion of the stressing
D 3715/D 3715M Practice for Quality Assurance of
clamp, and so aligned that they will hold the specimen wholly
Pressure-Sensitive Tapes
in the same plane; a means of moving the stressing clamp at a
D 4332 Practice for Conditioning Containers, Packages, or
2 uniform rate of 56 0.2 mm/s [12.06 0.5 in./min]; and an
Packaging Components for Testing
autographic device for recording load. The instrument shall be
E 122 Practice for Calculating Sample Size to Estimate,
calibrated to an accuracy of 0.5 % full scale. The scale range
With a Specified Tolerable Error, the Average for a
3 used for any test shall be such that the mean test level falls
Characteristic of a Lot or Process
within 20 to 50 % of full scale.
3. Terminology 6.2 Free-Turning Spindle , sized to fit snugly inside the
sample tape core, with its axis horizontally supported in a
3.1 Definitions: General terms in this test method are
frame that can be held in the clamp on the crosshead of the
defined in Terminology D 996.
unwind tester that is not supporting the load cell.
4. Summary of Test Method
7. Sampling
4.1 The sample roll of tape is placed on a free-turning
7.1 Acceptance Sampling—Sampling shall be in accordance
spindle held in a CRE (constant-rate-of-extension) tension
with Practice D 3715/D 3715M.
tester. While the crosshead is moved at a specified rate, the
7.2 Sampling for Other Purposes—The sampling and num-
ber of test specimens depends on the purpose of the testing.
Practice E 122 is recommended. It is common to test at least
This test method is under the jurisdiction of ASTM Committee D10 on
five specimens of a particular tape. Test specimens should be
Packaging and is the direct responsibility of Subcommittee D10.14 on Tape and
Labels.
Current edition approved March 10, 1996. Published May 1996. Originally
ε1
published as D 3811 – 79. Last previous edition D 3811 – 88 (1993) .
2 4
Annual Book of ASTM Standards, Vol 15.09. Available from Chemsultants International, 9349 Hamilton Dr., Mentor, OH
Annual Book of ASTM Standards, Vol
...

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