ASTM D3833/D3833M-96e1

Standard Test Method for Water Vapor Transmission of Pressure-Sensitive Tapes

SCOPE
1.1 This test method provides one procedure for measuring the water vapor transmission rate 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
• Technical Committee: D10 - Packaging
• Drafting Committee: D10.14 - Tape and Labels

Relations

• Replaced By: ASTM D3833/D3833M-96(2001) - Standard Test Method for Water Vapor Transmission of Pressure-Sensitive Tapes
• Effective Date: 10-Mar-1996

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or
withdrawn.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.
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Designation: D 3833/D3833M – 96
AMERICAN SOCIETY FOR TESTING AND MATERIALS
100 Barr Harbor Dr., West Conshohocken, PA 19428
Reprinted from the Annual Book of ASTM Standards. Copyright ASTM
Standard Test Method for
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Water Vapor Transmission of Pressure-Sensitive Tapes
This standard is issued under the fixed designation D 3833/D3833M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1
e NOTE—D 3833 and D 3833M were combined editorially in December 1997.
1. Scope a test cup containing a desiccant. The assembly is exposed to
a controlled atmosphere and weighed after two intervals of that
1.1 This test method provides one procedure for measuring
exposure. The gain in weight is used to calculate the water
the water vapor transmission rate of pressure-sensitive tape.
vapor transmission rate (WVTR).
1.2 The values stated in either SI or inch-pound units are to
be regarded separately as standard. The values stated in each
5. Significance and Use
system may not be exact equivalents; therefore, each system
5.1 The results of this test method will indicate the relative
must be used independently, without combining values in any
permeability by water vapor of the tape through its smallest
way.
dimension (generally normal to the tape’s backing).
1.3 This standard does not purport to address all of the
5.1.1 The pathway for the water vapor parallel to the
safety concerns, if any, associated with its use. It is the
adhesive-cup interface is great compared to the tape’s thick-
responsibility of the user of this standard to establish appro-
ness and the latter is usually the nearly exclusive source of
priate safety and health practices and determine the applica-
transmitted vapor.
bility of regulatory limitations prior to use.
5.1.2 Some tape types allow a relatively free path in a
2. Referenced Documents direction normal to the backing or along backing pathways
parallel to the adhesive-cup interface allowing the adhesive to
2.1 ASTM Standards:
become the principal barrier.
D 996 Terminology of Packaging and Distribution Environ-
2
5.2 If the adhesive does not continue to adhere to the cup
ments
flange during the exposure periods allowing unintended path-
D 3715/D3715M Practice for Quality Assurance of
2
ways for water vapor to occur, the measurement should be
Pressure-Sensitive Tapes
considered as not having been made. Consequently, the tape
D 4332 Practice for Conditioning Containers, Packages, or
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might be considered as being inappropriate for use on surfaces
Packaging Components for Testing
like the cup flange under moisture conditions approximating
E 96 Test Methods for Water Vapor Transmission of Mate-
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those of the test.
rials
E 122 Practice for Choice of Sample Size to Estimate a
NOTE 1—It may be that the interest is simply in the tape material as a
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Measure of Quality for a Lot or Process
water vapor barrier. In this case, how well the tape adheres to the cup
flange may be of little consequence, and steps to prevent any edge effects
3. Terminology
are in order. These are referred to in Section 10.
3.1 Definitions—General terms in this test method are
6. Apparatus
defined in Terminology D 996.
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6.1 Test Cups , made from materials that are nonhygro-
4. Summary of Test Method
scopic. The cup shall have a zero WVTR. The cups shall be
rectangular with a flat, smooth, rigid flange, and shall have the
4.1 The pressure-sensitive tape is secured by its adhesive to
following dimensions:
Flange:
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This test method is under the jurisdiction of ASTM Committee D-10 on
Outside–50.8 by 152.4 6 0.5 mm [2.0 by 6.0 6 0.02 in.]
Packaging and is the direct responsibility of Subcommittee D10.14 on Tape and
Inside (opening)–25.4 by 101.6 6 0.5 mm [1.0 by 4.0 6 0.02 in.]
Labels.
Body:
Current edition approved March 10, 1996. Published May 1996. Originally
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published as D 3833 – 79. Last previous edition D 3833 – 88 (1993) .
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Annual Book of ASTM Standards, Vol 15.09.
3 5
Annual Book of ASTM Standards, Vol 04.06. Available from Chemsultants International, 9349 Hamilton Dr., Mentor, OH
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Annual Book of ASTM Standards, Vol 14.02. 44061–1118.
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D 3833/D3833M
exposure period, and when the parties concerned are interested
Inside–25.4 by 101.6 by 38.1 (depth) 6 0.5 mm [1.0 by 4.0 by 1.5 (depth) 6
0.02 in.]
exclusively in the barrier properties for pathways normal to the
surface of the tape backing, a sealing material such as
The mass shall not exceed 80 % of the balance capacity used
aluminum foil
...