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ASTM D895-94

(Test Method)

Standard Test Method for Water Vapor Permeability of Packages (Withdrawn 1999)

Standard Test Method for Water Vapor Permeability of Packages (Withdrawn 1999)

SCOPE
1.1 This test method covers the determination of the water vapor permeability of finished packages when closed and sealed in the conventional manner. This test method is intended for "shelf-size packages" which are shipped in outside containers.  
1.2 This test method may be applied to the package as packed, after one or more performance tests such as drop (Test Method D5276), drum (Method D782), vibration (Method D999), after a series of tests simulating the shipping environment (Practice D4169), or after shipping tests have been completed, as required.  
1.3 Packages with body walls having the property of absorbing water are not suitable for testing under this test method.  
1.4 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.  
1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

General Information

Status
Withdrawn
Publication Date
31-Dec-1993
Withdrawal Date
09-Oct-1999
ICS
55.040 - Packaging materials and accessories
Technical Committee
D10 - Packaging
Current Stage
Ref Project

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ASTM D895-94 - Standard Test Method for Water Vapor Permeability of Packages (Withdrawn 1999)ASTM D895-94 - Standard Test Method for Water Vapor Permeability of Packages (Withdrawn 1999)
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ASTM D895-94 - Standard Test Method for Water Vapor Permeability of Packages (Withdrawn 1999)
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Standards Content (Sample)

Designation: D 895 – 94
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
1
Water Vapor Permeability of Packages
This standard is issued under the fixed designation D 895; 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 tion environments are found in Terminology D 996.
3.2 Definitions of Terms Specific to This Standard:
1.1 This test method covers the determination of the water
3.2.1 water vapor permeability—of a package, the rate at
vapor permeability of finished packages when closed and
which water is transmitted into the package from the test
sealed in the conventional manner. This test method is intended
atmosphere surrounding it while a desiccant is sealed within.
for “shelf-size packages” which are shipped in outside contain-
ers.
4. Significance and Use
1.2 This test method may be applied to the package as
4.1 This test method is normally used to:
packed, after one or more performance tests such as drop (Test
4.1.1 Evaluate materials and constructions for a specific
Method D 5276), drum (Method D 782), vibration (Method
type of package,
D 999), after a series of tests simulating the shipping environ-
4.1.2 Compare performance of different types of packages,
ment (Practice D 4169), or after shipping tests have been
4.1.3 Determine adequacy of protection for a specific prod-
completed, as required.
uct or application, and
1.3 Packages with body walls having the property of ab-
4.1.4 Maintain quality control.
sorbing water are not suitable for testing under this test
4.2 When this test method is conducted to determine the
method.
water vapor permeability of the packages for research, devel-
1.4 This standard does not purport to address all of the
opment, manufacturing control, specification acceptance, etc.,
safety concerns, if any, associated with its use. It is the
a desiccant is used as the water-absorbing medium.
responsibility of the user of this standard to establish appro-
4.3 When this test method is used to determine the suitabil-
priate safety and health practices and determine the applica-
ity of the package with respect to water vapor resistance for a
bility of regulatory limitations prior to use.
particular product, the product is used instead of the desiccant.
1.5 The values stated in SI units are to be regarded as the
standard. The values in parentheses are for information only.
5. Apparatus
5.1 Weighing Balance—A suitable laboratory balance sen-
2. Referenced Documents
sitive to 1 mg or one ten-thousandth of the mass of the
2.1 ASTM Standards:
package, whichever is larger.
D 782 Test Method for Shipping Containers in Revolving
5.2 Test Chamber—A test room or cabinet provided with
2
Hexagonal Drum
conditioned air which is continuously circulated around the
D 996 Terminology of Packaging and Distribution Environ-
specimens under test. The conditions in the chamber shall be
2
ments
386 2°C (100 6 4°F) and 90 6 2 % relative humidity or as
D 999 Methods for Vibration Testing of Shipping Contain-
otherwise specified. The conditions in the chamber shall be
2
ers
such that no condensation occurs on the specimens.
D 1251 Test Method for Water Vapor Permeability of Pack-
2
ages by Cycle Method
6. Materials
D 4169 Practice for Performance Testing of Shipping Con-
6.1 Desiccant—A desiccant shall be used that has a high
2
tainers and Systems
affinity for water vapor and a high drying efficiency; that is,
D 5276 Test Method for Drop Test of Loaded Containers by
having a low water vapor pressure even after absorbing a large
2
Free Fall
amount of water.
3. Terminology
NOTE 1—A suitable desiccant is anhydrous calcium chloride (CaCl )in
2
3.1 Definitions—General terms for packaging and distribu- the form of small lumps that will pass a No. 8 (2.36-mm) sieve, and free
of fines that will pass a No. 30 (600-μm) sieve.
1
This test method is under the jurisdiction of ASTM Committee D-10 on 6.2 Product—When the test is made to determine the
Packaging and is the direct responsibility of Subcommittee D10.23 on Natural
suitability of a specific package for a particular product, that
Environment Test Methods.
product may be used inside the test specimen instead of the
Current edition approved May 15, 1994. Published July 1994. Originally
desiccant, in which case the specimen shall be filled to normal
published as D 895 – 47 T. Last previous edition D 895 – 79 (1984).
2
Annual Book of ASTM Standards, Vol 15.09. capacity.
1

---------------------- Page: 1 ----------------------
D 895
7. Test Specimens 8.5 In instances where tests are made in which specific
products are used instead of the standard desiccant, a constant
7.1 Test specimens
...

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5.1 This test method determines the extent and nature of cushion thickness change under static load. Creep data obtained by this test method are applicable to the cushion under the conditions of the particular test and are not necessarily the same as obtained in a complete pack in actual packaging environments. Data may be affected by magnitude of static load, specimen area, shape, and thickness, by varying ambient conditions of temperature, humidity, by friction in the movable platen guide system, and by actual cushion thickness. Vibration in the vicinity of the test fixtures may also influence data results.
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