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ASTM D3079-94(2009)e1

(Test Method)

Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products (Withdrawn 2018)

Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products (Withdrawn 2018)

SIGNIFICANCE AND USE
This test method determines the water vapor barrier properties of the package. With proper precautions and background experience, reproducible results can be obtained to aid in the selection of proper package materials required to provide the product shelf-life desired. This test method may be used to establish a performance specification.
SCOPE
1.1 This test method covers the determination of the amount of water vapor transmission for flexible heat-sealed packages under specified conditions of exposure.
Note 1—Adequate heat-seal efficiency should be determined prior to this test method.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
WITHDRAWN RATIONALE
This test method covered the determination of the amount of water vapor transmission for flexible heat-sealed packages under specified conditions of exposure.
Formerly under the jurisdiction of Committee F02 on Primary Barrier Packaging, this test method was withdrawn in January 2018 and replaced by Test Methods D7709 on Measuring Water Vapor Transmission Rate (WVTR) of Pharmaceutical Bottles and Blisters.1
Test Method D3079 has no ILS data and a search within ASTM yields no data to justify the statements presented in the precision and bias sections. Additionally, Test Method D3079 is not written as thoroughly as Test Methods D7709. The scope of Test Methods D7709 mentions that it can be adapted for use with flexible pouches. As Test Methods D7709 contains a complete ILS, along with examples of calculations, users should look to this standard for a gravimetric method for the measurement of the WVTR of packages.

General Information

Status
Withdrawn
Publication Date
30-Apr-2009
Withdrawal Date
17-Jan-2018
ICS
55.040 - Packaging materials and accessories
Technical Committee
F02 - Primary Barrier Packaging
Drafting Committee
F02.10 - Permeation
Current Stage
Ref Project

Relations

Replaces
ASTM D3079-94(2003) - Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products
Effective Date
01-May-2009
Referred By
ASTM F2097-20 - Standard Guide for Design and Evaluation of Primary Flexible Packaging for Medical Products
Effective Date
01-May-2009
Referred By
ASTM F2902-16e1 - Standard Guide for Assessment of Absorbable Polymeric Implants
Effective Date
01-May-2009

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ASTM D3079-94(2009)e1 - Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products (Withdrawn 2018)ASTM D3079-94(2009)e1 - Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products (Withdrawn 2018)
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ASTM D3079-94(2009)e1 - Standard Test Method for Water Vapor Transmission of Flexible Heat-Sealed Packages for Dry Products (Withdrawn 2018)
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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
´1
Designation: D3079 − 94 (Reapproved 2009)
Standard Test Method for
Water Vapor Transmission of Flexible Heat-Sealed Packages
for Dry Products
This standard is issued under the fixed designation D3079; 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.
´ NOTE—Units information was revised editorially in May 2009.
1. Scope 4. Summary of Test Method
1.1 Thistestmethodcoversthedeterminationoftheamount 4.1 Test samples are filled with desiccant and after sealing
of water vapor transmission for flexible heat-sealed packages are exposed to 37.8 6 1.1°C and 90 6 2 % relative humidity
under specified conditions of exposure. for at least 1 month. Measurements of mass are taken at
intervals to determine the average rate of mass change.
NOTE 1—Adequate heat-seal efficiency should be determined prior to
Controls are used to monitor mass gain of package materials.
this test method.
1.2 The values stated in SI units are to be regarded as
5. Significance and Use
standard. No other units of measurement are included in this
5.1 This test method determines the water vapor barrier
standard.
properties of the package. With proper precautions and back-
1.3 This standard does not purport to address all of the
ground experience, reproducible results can be obtained to aid
safety concerns, if any, associated with its use. It is the
intheselectionofproperpackagematerialsrequiredtoprovide
responsibility of the user of this standard to establish appro-
the product shelf-life desired. This test method may be used to
priate safety and health practices and determine the applica-
establish a performance specification.
bility of regulatory limitations prior to use.
6. Apparatus
2. Referenced Documents
6.1 Weighing Balance—Analytical balance accurate to 1
mg.
2.1 ASTM Standards:
E691 Practice for Conducting an Interlaboratory Study to
6.2 Test Chamber—A test room or cabinet provided with
Determine the Precision of a Test Method
conditioned air that is continuously circulated around the
specimens under test. The conditions in the chamber shall be
3. Terminology
such that no condensation occurs on the specimens.
3.1 Definitions:
7. Materials
3.1.1 water vapor transmission of a desiccant-filled
7.1 Desiccant—Anhydrous calcium chloride in the form of
package—the increase in mass after exposure to a specified
small lumps is recommended for this test method. This should
humid environment (90 6 2 % relative humidity, 37.8 6
passaNo.8(2.36-mm)sieve,andbefreeoffinesthatwillpass
1.1°C). The mass increase may be divided by a time unit to
a No. 30 (600-µm) sieve. The desiccant should be dried for at
give a rate (for example, grams per 30 days). It is assumed that
least 24 h at 200°C prior to use.
this mass increase is due to water vapor transmission (through
the package) from the test environment to the desiccant.
8. Test Specimens
8.1 Test specimens shall be representative of the packages
being tested, and shall be closed and sealed in the normal
This test method is under the jurisdiction ofASTM Committee F02 on Flexible
manner.
Barrier Packaging and is the direct responsibility of Subcommittee F02.10 on
Permeation.
8.2 Review the precision and bias statement to determine
Current edition approved May 1, 2009. Published June 2009. Originally
the number of samples required to meet requirements.
approved in 1972. Last previous edition approved in 2003 as D3079 – 94(2003).
Generally, three to five samples have been found to be
DOI: 10.1520/D3079-94R09E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or sufficient for most applications.
contactASTM Customer Service at service@astm.org. ForAnnual Book ofASTM
8.3 Each test specimen should be half full of desiccant up to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 100 g of desiccant. If the half-full capacity is greater than 100
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
´1
D3079 − 94 (2009)
g of desiccant, the package shall be less than half full, but each Continueuntilaconstantrateofgainisattainedasindicatedby
shall contain approximately the same quantity of desiccant. at least three successive points in a straight line. The slope of
this portion of the curve will furnish a measure of water vapor
8.4 If more than one typ
...

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SCOPE
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5.1 Knowledge of extractives from flexible barrier materials may serve many useful purposes. A test cell constructed as described in this practice may be used for obtaining such data. Another test cell has been found equivalent to the one described in this practice. See the appendix for the source of the alternate cell.  
5.2 United States Federal Regulations 21CFR 176.170 (d)(3), 21CFR 177.1330 (e)(4), 21CFR 177.1360 (b), 21CFR 177.1670 (b), and 21CFR Appendix VI (b) cite this standard practice as the basis for determining the amount of extractables from the surface of a package or multilayer film or modified paper in contact with food. In some cases, it is the only practice defined for this purpose. No alternative detail is given in the regulations for conducting extractions.  
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1.3 The analyst should determine the sensitivity and reproducibility of the method by carrying out appropriate studies on the solvents of interest. The analyst is referred to Practice E260 for guidance.  
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1.7 The values stated in SI units are to be regarded as the standard.  
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SCOPE
1.1 This test method provides standard conditions for determining the rate of grease penetration of flexible barrier materials. Pinholes, which can be measured by a separate test, will increase the rate of grease penetration as determined by this test method.  
1.2 The values stated in SI units are to be regarded as 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.4 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.

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