Standard Test Method for Determining Tearing Strength of Internally Reinforced Geomembranes

SIGNIFICANCE AND USE
5.1 Since tear resistance may be affected to a large degree by mechanical fibering of the membrane under stress, as well as by stress distribution, strain rate, and size of specimen, the results obtained in a tear resistance test can only be regarded as a measure of the resistance under the conditions of that particular test and not necessarily as having any direct relation to service value. This test method measures the force required to tear a reinforced geomembrane along a reasonably defined course such as that the tear propagates across the width of the specimen. The values may vary between types of reinforcement used within a geomembrane.  
5.2 The tongue tear method is useful for estimating the relative tear resistance of different reinforcing textiles or different directions in the same reinforcing textiles.  
5.3 Disputes—In case of a dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical difference between their laboratories.
SCOPE
1.1 This test method covers a uniform procedure for determining the tear strength of flexible geomembranes internally reinforced with a textile, using the tongue tear method.  
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
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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Publication Date
31-Oct-2023
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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: D5884/D5884M − 23
Standard Test Method for
Determining Tearing Strength of Internally Reinforced
1
Geomembranes
This standard is issued under the fixed designation D5884/D5884M; 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 3.1.1 atmosphere for testing geosynthetics, n—air main-
tained at a relative humidity between 50 to 70 % and a
1.1 This test method covers a uniform procedure for deter-
temperature of 21 6 2 °C [70 6 4 °F]. D4439
mining the tear strength of flexible geomembranes internally
reinforced with a textile, using the tongue tear method. 3.1.2 geomembrane, n—an essentially impermeable geosyn-
thetic composed of one or more synthetic sheets. D4439
1.2 The values stated in either SI units or inch-pound units
3.1.3 reinforced geomembrane—a geomembrane internally
are to be regarded separately as standard. The values stated in
reinforced with a textile.
each system are not necessarily exact equivalents; therefore, to
ensure conformance with the standard, each system shall be
3.1.4 tearing strength, (F, (F), kN), n—the force required
used independently of the other, and values from the two
either (1) to start or (2) to continue or propagate a tear in a
systems shall not be combined.
fabric under specified conditions. D4439, D4533/D4533M
1.3 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the 4. Summary of Test Method
responsibility of the user of this standard to establish appro-
4.1 The tensile tear strength of a membrane in both machine
priate safety, health, and environmental practices and deter-
and cross-machine directions is determined by measuring the
mine the applicability of regulatory limitations prior to use.
maximum load when cut specimens of specific dimensions are
1.4 This international standard was developed in accor-
tested to failure by tearing at a fixed testing displacement rate.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5. Significance and Use
Development of International Standards, Guides and Recom-
5.1 Since tear resistance may be affected to a large degree
mendations issued by the World Trade Organization Technical
by mechanical fibering of the membrane under stress, as well
Barriers to Trade (TBT) Committee.
as by stress distribution, strain rate, and size of specimen, the
2. Referenced Documents results obtained in a tear resistance test can only be regarded as
2 a measure of the resistance under the conditions of that
2.1 ASTM Standards:
particular test and not necessarily as having any direct relation
D4354 Practice for Sampling of Geosynthetics and Rolled
to service value. This test method measures the force required
Erosion Control Products (RECPs) for Testing
to tear a reinforced geomembrane along a reasonably defined
D4439 Terminology for Geosynthetics
course such as that the tear propagates across the width of the
D4533/D4533M Test Method for Trapezoid Tearing
specimen. The values may vary between types of reinforce-
Strength of Geotextiles
ment used within a geomembrane.
3. Terminology
5.2 The tongue tear method is useful for estimating the
relative tear resistance of different reinforcing textiles or
3.1 Definitions of Terms Specific to This Standard:
different directions in the same reinforcing textiles.
5.3 Disputes—In case of a dispute arising from differences
1
This test method is under the jurisdiction of ASTM Committee D35 on
in reported test results when using this test method for
Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomem-
branes.
acceptance testing of commercial shipments, the purchaser and
Current edition approved Nov. 1, 2023. Published December 2023. Originally
the supplier should conduct comparative tests to determine if
approved in 1995. Last previous edition approved in 2015 as D5884/D5884M – 04a
ɛ1 there is a statistical difference between their laboratories.
(2015) . DOI: 10.1520/D5884_D5884M-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6. Apparatus
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.1 The machine shall consist of three main parts:
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959.
...

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.
´1
Designation: D5884/D5884M − 04a (Reapproved 2015) D5884/D5884M − 23
Standard Test Method for
Determining Tearing Strength of Internally Reinforced
1
Geomembranes
This standard is issued under the fixed designation D5884/D5884M; 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
ε NOTE—Designation was changed to dual and units information was corrected editorially in June 2015.
1. Scope
1.1 This test method covers a uniform procedure for determining the tear strength of flexible geomembranes internally reinforced
with a textile, using the tongue tear method.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used
independently of the other, and values from the two systems shall not be combined.
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 healthsafety, 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
D4439 Terminology for Geosynthetics
D4533/D4533M Test Method for Trapezoid Tearing Strength of Geotextiles
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 atmosphere for testing geosynthetics, n—air maintained at a relative humidity between 50 to 70 % and a temperature of 21
6 2°C2 °C [70 6 4°F].4 °F]. D4439
3.1.2 geomembrane, n—an essentially impermeable geosynthetic composed of one or more synthetic sheets. D4439
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.10 on Geomembranes.
Current edition approved May 1, 2015Nov. 1, 2023. Published June 2015December 2023. Originally approved in 1995. Last previous edition approved in 20102015 as
ɛ1
D5884/D5884M – 04a (2015) D5884–04a(2010). DOI: 10.1520/D5884_D5884M-04AR15E01. DOI: 10.1520/D5884_D5884M-23.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. 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
1

---------------------- Page: 1 ----------------------
D5884/D5884M − 23
3.1.3 reinforced geomembrane—a geomembrane internally reinforced with a textile.
3.1.4 tearing strength, (F, (F), kN), n—the force required either (1)(1) to start or (2)(2) to continue or propagate a tear in a fabric
under specified conditions. D4439, D4533/D4533M
4. Summary of Test Method
4.1 The tensile tear strength of a membrane in both machine and cross-machine directions is determined by measuring the
maximum load when cut specimens of specific dimensions are tested to failure, by tearing,failure by tearing at a fixed testing
displacement rate.
5. Significance and Use
5.1 Since tear resistance may be affected to a large degree by mechanical fibering of the membrane under stress, as well as by
stress distribution, strain rate, and size of specimen, the results obtained in a tear resistance test can only be regarded as a measure
of the resistance under the conditions of that particular test and not necessarily as having any direct relation to service value. This
test method measures the force required to tear a reinforced geomembrane along a reasonably defined course such as that the tear
propagates across the width of the specimen. The values may vary between types of reinforcement used within a geomembrane.
5.2 The tongue tear method is useful for estimating the relative tear resi
...

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