ASTM F1927-20

Standard Test Method for Determination of Oxygen Gas Transmission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector

SIGNIFICANCE AND USE
5.1 O2GTR at a given temperature and %RH is an important determinant of the packaging protection afforded by barrier materials. It is not, however the sole determinant, and additional tests, based on experience, must be used to correlate packaging performance with O2GTR. It is suitable as a referee method of testing, provided that purchaser and seller have agreed on sampling procedures, standardization procedures, test conditions and acceptance criteria.
SCOPE
1.1 This test method covers a procedure for determination of the rate of transmission of oxygen gas, at steady-state, at a given temperature and %RH level, through film, sheeting, laminates, co-extrusions, or plastic-coated papers or fabrics. This test method extends the common practice dealing with zero humidity or, at best, an assumed humidity. Humidity plays an important role in the oxygen gas transmission rate (O2GTR) of many materials. This test method provides for the determination of oxygen gas transmission rate (O2GTR), the permeance of the film to oxygen gas (PO2), the permeation coefficient of the film to its thickness (P”O2), and oxygen permeability coefficient (PʹO2) in the case of homogeneous materials at given temperature and %RH level(s).  
1.2 The values stated in SI units are to be regarded as the 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 9.  
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.

General Information

• Status: Published
• Publication Date: 31-May-2020
• ICS: 83.140.01 - Rubber and plastics products in general
• Technical Committee: F02 - Primary Barrier Packaging
• Drafting Committee: F02.10 - Permeation

Relations

• Referred By: ASTM D7407-07(2020) - Standard Guide for Determining the Transmission of Gases Through Geomembranes
• Effective Date: 01-Jun-2020
• Referred By: ASTM F2097-20 - Standard Guide for Design and Evaluation of Primary Flexible Packaging for Medical Products
• Effective Date: 01-Jun-2020

Standards Content (Sample)

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.
Designation: F1927 − 20
Standard Test Method for
Determination of Oxygen Gas Transmission Rate,
Permeability and Permeance at Controlled Relative Humidity
1
Through Barrier Materials Using a Coulometric Detector
This standard is issued under the fixed designation F1927; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope D3985Test Method for Oxygen Gas Transmission Rate
Through Plastic Film and Sheeting Using a Coulometric
1.1 This test method covers a procedure for determination
Sensor
of the rate of transmission of oxygen gas, at steady-state, at a
E104Practice for Maintaining Constant Relative Humidity
given temperature and %RH level, through film, sheeting,
by Means of Aqueous Solutions
laminates, co-extrusions, or plastic-coated papers or fabrics.
E691Practice for Conducting an Interlaboratory Study to
This test method extends the common practice dealing with
Determine the Precision of a Test Method
zerohumidityor,atbest,anassumedhumidity.Humidityplays
animportantroleintheoxygengastransmissionrate(O GTR)
2
3. Terminology
of many materials. This test method provides for the determi-
nation of oxygen gas transmission rate (O GTR), the per-
3.1 Definitions:
2
meance of the film to oxygen gas (PO ), the permeation 3.1.1 oxygen permeability coeffıcient(PʹO )—theproductof
2
2
coefficient of the film to its thickness (P”O ), and oxygen
the permeance and the thickness of the film. The permeability
2
permeability coefficient (PʹO ) in the case of homogeneous is meaningful only for homogeneous materials, in which case
2
materials at given temperature and %RH level(s).
itisapropertycharacteristicofthebulkmaterial.Thisquantity
should not be used unless the relationship between thickness
1.2 The values stated in SI units are to be regarded as the
andpermeancehasbeenverifiedontestsusingseveraldifferent
standard.
thicknessesofthematerial.TheSIunitofoxygenpermeability
1.3 This standard does not purport to address all of the
is the mol/(m·s·Pa). The test conditions (see 3.1.4) must be
safety concerns, if any, associated with its use. It is the
stated.
responsibility of the user of this standard to establish appro-
3.1.2 oxygen permeance (PO )—the ratio of O GTR to the
2 2
priate safety, health, and environmental practices and deter-
difference between the partial pressure of O on the two sides
2
mine the applicability of regulatory limitations prior to use.
2
of the film. The SI unit of permeance is the mol/(m ·s·Pa).
Specific precautionary statements are given in Section 9.
The test conditions (see 3.1.4) must be stated.
1.4 This international standard was developed in accor-
3.1.3 oxygen permeation coeffıcient (P”O )—the ratio of
2
dance with internationally recognized principles on standard-
O GTR to the thickness of the film. The SI unit of permeance
2
ization established in the Decision on Principles for the
2
is the mol/(m ·s·cm). The permeation coefficient is mean-
Development of International Standards, Guides and Recom-
ingful only for homogeneous materials, in which case it is a
mendations issued by the World Trade Organization Technical
property characteristic of the bulk material. This quantity
Barriers to Trade (TBT) Committee.
should not be used unless the relationship between thickness
and transmission rate is known.
2. Referenced Documents
3.1.4 oxygen transmission rate—at a given temperature and
2
2.1 ASTM Standards:
%RH (O GTR), the quantity of oxygen gas passing through a
2
unit area of the parallel surfaces of a plastic film per unit time
1
This test method is under the jurisdiction ofASTM Committee F02 on Primary under the conditions of test. The SI unit of transmission rate is
2
Barrier Packaging and is the direct responsibility of Subcommittee F02.10 on
the mol/(m ·s). The test conditions, including temperature,
Permeation.
%RH and oxygen partial pressure on both sides of the film
CurrenteditionapprovedJune1,2020.PublishedJuly2020.Originallyapproved
must be stated.
in 1998. Last previous edition approved in 2014 as F1927–14. DOI: 10.1520/
F1927-20.
3.1.5 transmission rate(O GTR)—acommonlyusedmetric
2
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 3 2
unit of O GTR is the cm (STP)/(m ·d) at one atmosphere
2
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
3
pressuredifferentialwhere:1cm atStandardTemperatureand
Standards volume information, refer to the standard’s Document Summary page on
5
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F1927 − 14 F1927 − 20
Standard Test Method for
Determination of Oxygen Gas Transmission Rate,
Permeability and Permeance at Controlled Relative Humidity
1
Through Barrier Materials Using a Coulometric Detector
This standard is issued under the fixed designation F1927; 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.
1. Scope
1.1 This test method covers a procedure for determination of the rate of transmission of oxygen gas, at steady-state, at a given
temperature and %RH level, through film, sheeting, laminates, co-extrusions, or plastic-coated papers or fabrics. This test method
extends the common practice dealing with zero humidity or, at best, an assumed humidity. Humidity plays an important role in
the oxygen gas transmission rate (O GTR) of many materials. This test method provides for the determination of oxygen gas
2
transmission rate (O GTR), the permeance of the film to oxygen gas (PO ), the permeation coefficient of the film to its thickness
2 2
(P”O ), and oxygen permeability coefficient (PʹO ) in the case of homogeneous materials at given temperature and %RH level(s).
2 2
1.2 The values stated in SI units are to be regarded as the 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 9.
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.
2. Referenced Documents
2
2.1 ASTM Standards:
3
D1898 Practice for Sampling of Plastics (Withdrawn 1998)
D3985 Test Method for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor
E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
3. Terminology
3.1 Definitions:
3.1.1 oxygen permeability coeffıcient (PʹO )—the product of the permeance and the thickness of the film. The permeability is
2
meaningful only for homogeneous materials, in which case it is a property characteristic of the bulk material. This quantity should
not be used unless the relationship between thickness and permeance has been verified on tests using several different thicknesses
of the material. The SI unit of oxygen permeability is the mol/(m · s · Pa). The test conditions (see 3.1.4) must be stated.
3.1.2 oxygen permeance (PO )—the ratio of O GTR to the difference between the partial pressure of O on the two sides of the
2 2 2
2
film. The SI unit of permeance is the mol/(m · s · Pa). The test conditions (see 3.1.4) must be stated.
3.1.3 oxygen permeation coeffıcient (P”O )—the ratio of O GTR to the thickness of the film. The SI unit of permeance is the
2 2
2
mol/(m · s · cm). The permeation coefficient is meaningful only for homogeneous materials, in which case it is a property
characteristic of the bulk material. This quantity should not be used unless the relationship between thickness and transmission rate
is known.
1
This test method is under the jurisdiction of ASTM Committee F02 on FlexiblePrimary Barrier Packaging and is the direct responsibility of Subcommittee F02.10 on
Permeation.
Current edition approved April 1, 2014June 1, 2020. Published June 2014July 2020. Originally approved in 1998. Last previous edition approved in 20072014 as
F1927 – 07.F1927 – 14. DOI: 10.1520/F1927-14.10.1520/F1927-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F1927 − 20
3.1.4 oxygen transmission
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