ASTM D5397-20
(Test Method)Standard Test Method for Evaluation of Stress Crack Resistance of Polyolefin Geomembranes Using Notched Constant Tensile Load Test
Standard Test Method for Evaluation of Stress Crack Resistance of Polyolefin Geomembranes Using Notched Constant Tensile Load Test
SIGNIFICANCE AND USE
5.1 This test method does not purport to interpret the resulting response curve. Such interpretation is left to the parties involved in the commissioning and reporting of the test results.
5.2 This test method is intended as an index test and may be used for grading polyolefin geomembrane sheets in regard to their stress-cracking sensitivity.
5.2.1 Conditions that can affect stress cracking include: level of loading, test temperature and environment, microstructure, polymer additive package, processing history, and thermal history.
5.3 The test method is applicable to smooth, homogeneous polyolefin geomembranes where the two sides are parallel to permit application of the stress on a well-defined surface delimited by the surface of the geomembrane on one side, and the bottom of the notch on the other side.
5.4 The test is applicable to textured geomembranes when prepared as described in 8.3.2.
5.5 The test may be applicable to multi-component geomembranes (such as white, conductive, or other non-homogeneous sheets) or limited to the evaluation of the base polymer when prepared as described in 8.3.3.
5.6 The test is not applicable to bituminous, EPDM, plasticized PVC, and other non-polyolefin geomembranes, as these materials are not susceptible to slow crack growth.
5.7 This test method may not be applied to polyolefin geomembranes that do not exhibit a well-defined yield point, such as some VLDPE and LLDPE.
SCOPE
1.1 This test method is used to develop test data from which the susceptibility of polyolefin geomembrane sheet material to stress cracking under a constant tensile load condition and an accelerated environmental condition can be evaluated.
1.2 This test method measures the failure time associated with a given test specimen at a specified tensile load level. Results from a series of such tests utilizing a range of load levels can be used to construct a stress-time plot on a log-log axis.
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are provided for information only.
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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 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
Relations
Buy Standard
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:D5397 −20
Standard Test Method for
Evaluation of Stress Crack Resistance of Polyolefin
1
Geomembranes Using Notched Constant Tensile Load Test
This standard is issued under the fixed designation D5397; 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 D4703 Practice for Compression Molding Thermoplastic
Materials into Test Specimens, Plaques, or Sheets
1.1 This test method is used to develop test data from which
D5199 Test Method for Measuring the Nominal Thickness
the susceptibility of polyolefin geomembrane sheet material to
of Geosynthetics
stress cracking under a constant tensile load condition and an
D6693/D6693M Test Method for Determining Tensile Prop-
accelerated environmental condition can be evaluated.
erties of Nonreinforced Polyethylene and Nonreinforced
1.2 This test method measures the failure time associated
Flexible Polypropylene Geomembranes
with a given test specimen at a specified tensile load level.
Results from a series of such tests utilizing a range of load
3. Terminology
levels can be used to construct a stress-time plot on a log-log
3.1 Definitions:
axis.
3.1.1 actual thickness, n—individual measurement per Test
1.3 The values stated in SI units are to be regarded as the
Method D5199, on a specimen tab.
standard. The inch-pound units given in parentheses are
3.1.2 average thickness, n—result of Test Method D5199
provided for information only.
testing, that is, average of ten specimens.
1.4 This standard does not purport to address all of the
3.1.3 geomembrane, n—very low permeability synthetic
safety concerns, if any, associated with its use. It is the
membrane liners or barriers used with any geotechnical
responsibility of the user of this standard to establish appro-
engineering-related material so as to control fluid migration in
priate safety, health, and environmental practices and deter-
a man-made project, structure, or system.
mine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accor-
3.1.4 ligament, n—theportionofgeomembranethatremains
dance with internationally recognized principles on standard-
uncut under the notch.
ization established in the Decision on Principles for the
3.1.5 ligament thickness, n—length of the ligament mea-
Development of International Standards, Guides and Recom-
sured from the bottom of the notch to the edge of the specimen
mendations issued by the World Trade Organization Technical
in a direction perpendicular to the plane of the test specimen.
Barriers to Trade (TBT) Committee.
3.1.6 multi-component geomembrane, n—a geomembrane
that includes multiple layers of different nature.
2. Referenced Documents
2
3.1.7 nominal thickness, n—the thickness specified without
2.1 ASTM Standards:
regard of tolerance.
D883 Terminology Relating to Plastics
D4354 Practice for Sampling of Geosynthetics and Rolled
3.1.8 notch, n—cutmadeusingaspecifiedtoolinprescribed
Erosion Control Products (RECPs) for Testing
conditions.
D4439 Terminology for Geosynthetics
3.1.9 slow crack growth, n—type of fracture mechanism
characterized by the stable growth of a crack with little
deformation in the material.
1
This test method is under the jurisdiction of ASTM Committee D35 on
3.1.10 smooth geomembrane, n—a geomembrane that does
Geosynthetics and is the direct responsibility of Subcommittee D35.02 on Endur-
ance Properties. not present any surface texture.
Current edition approved June 1, 2020. Published June 2020. Originally
3.1.10.1 Discussion—A geomembrane can be smooth on
approved in 1993. Last previous edition approved in 2019 as D5397 – 19a. DOI:
one side but textured on the other side.
10.1520/D5397-20.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
3.2 For definitions of other terms relating to geotextiles and
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
geomembranes used in this standard, refer to Terminologies
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. D4439 and D883.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5397−20
of the test apparatus. However, there should be a constant neck section
4. Summary of Test Method
with length at least 12.7 mm (0.5 in.) long. The width should be 3.20 mm
4.1 This t
...
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: D5397 − 19a D5397 − 20
Standard Test Method for
Evaluation of Stress Crack Resistance of Polyolefin
1
Geomembranes Using Notched Constant Tensile Load Test
This standard is issued under the fixed designation D5397; 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 is used to develop test data from which the susceptibility of polyolefin geomembrane sheet material to
stress cracking under a constant tensile load condition and an accelerated environmental condition can be evaluated.
1.2 This test method measures the failure time associated with a given test specimen at a specified tensile load level. Results
from a series of such tests utilizing a range of load levels can be used to construct a stress-time plot on a log-log axis.
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are provided for
information only.
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, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 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:
D883 Terminology Relating to Plastics
D4354 Practice for Sampling of Geosynthetics and Rolled Erosion Control Products (RECPs) for Testing
D4439 Terminology for Geosynthetics
D4703 Practice for Compression Molding Thermoplastic Materials into Test Specimens, Plaques, or Sheets
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
D6693/D6693M Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible
Polypropylene Geomembranes
3. Terminology
3.1 Definitions:
3.1.1 actual thickness, n—individual measurement per Test Method D5199, on a specimen tab.
3.1.2 average thickness, n—result of Test Method D5199 testing, that is, average of ten specimens.
3.1.3 geomembrane, n—very low permeability synthetic membrane liners or barriers used with any geotechnical engineering-
related material so as to control fluid migration in a man-made project, structure, or system.
3.1.4 ligament, n—the portion of geomembrane that remains uncut under the notch.
3.1.5 ligament thickness, n—length of the ligament measured from the bottom of the notch to the edge of the specimen in a
direction perpendicular to the plane of the test specimen.
3.1.6 multi-component geomembrane, n—a geomembrane that includes multiple layers of different nature.
3.1.7 nominal thickness, n—the thickness specified without regard of tolerance.
1
This test method is under the jurisdiction of ASTM Committee D35 on Geosynthetics and is the direct responsibility of Subcommittee D35.02 on Endurance Properties.
Current edition approved Oct. 15, 2019June 1, 2020. Published October 2019June 2020. Originally approved in 1993. Last previous edition approved in 2019 as
D5397 – 19.D5397 – 19a. DOI: 10.1520/D5397-19A.10.1520/D5397-20.
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 ----------------------
D5397 − 20
3.1.8 notch, n—cut made using a specified tool in prescribed conditions.
3.1.9 slow crack growth, n—type of fracture mechanism characterized by the stable growth of a crack with little deformation
in the material.
3.1.10 smooth geomembrane, n—a geomembrane that does not present any surface texture.
3.1.10.1 Discussion—
A geomembrane can be smooth on one side but textured on the other side.
3.1.11 stress crack, n—an external or internal crack in a plastic caused by tensile stresses less than its short-time mechanical
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.