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ASTM D6389-23

(Practice)

Standard Practice for Tests to Evaluate the Chemical Resistance of Geotextiles to Liquids

Standard Practice for Tests to Evaluate the Chemical Resistance of Geotextiles to Liquids

SIGNIFICANCE AND USE
5.1 This practice provides a test procedure for determining the resistance of a geotextile with a liquid waste, leachate, or chemical. This practice should be used in the absence of other specifications required for the particular situation being addressed.  
5.2 The specification of test procedures in this practice is intended to serve as a guide for those wishing to compare or investigate the chemical resistance of a geotextile to a potentially harsh chemical environment.  
5.3 This practice is for the chemical resistance assessment of geotextiles and is written in parallel to similar standard practices for geomembranes, geogrids, geonets, and geopipes. Each standard is to be considered individually for the geosynthetic under investigation and collectively for all geosynthetics exposed to the potentially harsh chemical environment under consideration.
SCOPE
1.1 This practice describes the procedures used for testing geotextiles for chemical resistance to liquids. Reinforcement geotextiles can also be tested per Practice D6213.  
1.2 This practice describes test methods for measuring changes in planar dimensions, tensile properties, and other optional physical, mechanical, and hydraulic properties caused by immersion in test liquids which may be representative of anticipated end-use conditions. This practice may be used to assess the extent to which a product's as-manufactured properties are affected by such immersion.  
1.3 This practice is intended to be used in conjunction with either Practice D5322 or D5496. The scope of this practice is limited to testing and reporting procedures for unexposed and exposed geotextile samples.  
1.4 Evaluation or interpretation of test data is beyond the scope of this practice.  
1.5 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. For specific warning statements, see Section 7.  
1.6 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-Aug-2023
ICS
59.080.70 - Geotextiles
Technical Committee
D35 - Geosynthetics
Drafting Committee
D35.02 - Endurance Properties
Current Stage
Ref Project

Relations

Replaces
ASTM D6389-17 - Standard Practice for Tests to Evaluate the Chemical Resistance of Geotextiles to Liquids
Effective Date
01-Sep-2023
Refers
ASTM D5322-23 - Standard Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids
Effective Date
01-Sep-2023
Refers
ASTM D5322-17 - Standard Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids
Effective Date
01-Jun-2017
Referred By
ASTM D4884/D4884M-22 - Standard Test Method for Strength of Sewn or Bonded Seams of Geotextiles
Effective Date
01-Sep-2023
Referred By
ASTM D6917-16(2022) - Standard Guide for Selection of Test Methods for Prefabricated Vertical Drains (PVD)
Effective Date
01-Sep-2023
Referred By
ASTM D7931/D7931M-21a - Standard Guide for Specifying Drainage Geocomposites
Effective Date
01-Sep-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: D6389 − 23
Standard Practice for
Tests to Evaluate the Chemical Resistance of Geotextiles to
1
Liquids
This standard is issued under the fixed designation D6389; 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 2. Referenced Documents
2
2.1 ASTM Standards:
1.1 This practice describes the procedures used for testing
D16 Terminology for Paint, Related Coatings, Materials, and
geotextiles for chemical resistance to liquids. Reinforcement
Applications
geotextiles can also be tested per Practice D6213.
D123 Terminology Relating to Textiles
1.2 This practice describes test methods for measuring
D883 Terminology Relating to Plastics
changes in planar dimensions, tensile properties, and other
D1238 Test Method for Melt Flow Rates of Thermoplastics
optional physical, mechanical, and hydraulic properties caused
by Extrusion Plastometer
by immersion in test liquids which may be representative of
D1695 Terminology of Cellulose and Cellulose Derivatives
anticipated end-use conditions. This practice may be used to D4439 Terminology for Geosynthetics
assess the extent to which a product’s as-manufactured prop- D4491/D4491M Test Methods for Water Permeability of
Geotextiles by Permittivity
erties are affected by such immersion.
D4533/D4533M Test Method for Trapezoid Tearing
1.3 This practice is intended to be used in conjunction with
Strength of Geotextiles
either Practice D5322 or D5496. The scope of this practice is
D4595/D4595M Test Method for Tensile Properties of Geo-
limited to testing and reporting procedures for unexposed and
textiles by the Wide-Width Method
exposed geotextile samples.
D4603 Test Method for Determining Inherent Viscosity of
Poly(Ethylene Terephthalate) (PET) by Glass Capillary
1.4 Evaluation or interpretation of test data is beyond the
Viscometer
scope of this practice.
D4632/D4632M Test Method for Grab Breaking Load and
1.5 This standard does not purport to address all of the
Elongation of Geotextiles
safety concerns, if any, associated with its use. It is the
D4716/D4716M Test Method for Determining the (In-plane)
responsibility of the user of this standard to establish appro-
Flow Rate per Unit Width and Hydraulic Transmissivity
priate safety, health, and environmental practices and deter-
of a Geosynthetic Using a Constant Head
mine the applicability of regulatory limitations prior to use.
D4751 Test Methods for Determining Apparent Opening
For specific warning statements, see Section 7.
Size of a Geotextile
D5199 Test Method for Measuring the Nominal Thickness
1.6 This international standard was developed in accor-
dance with internationally recognized principles on standard- of Geosynthetics
D5261 Test Method for Measuring Mass per Unit Area of
ization established in the Decision on Principles for the
Geotextiles
Development of International Standards, Guides and Recom-
D5322 Practice for Laboratory Immersion Procedures for
mendations issued by the World Trade Organization Technical
Evaluating the Chemical Resistance of Geosynthetics to
Barriers to Trade (TBT) Committee.
Liquids
D5496 Practice for In-Field Immersion Testing of Geosyn-
thetics
D5885/D5885M Test Method for Oxidative Induction Time
of Polyolefin Geosynthetics by High-Pressure Differential
1
This practice is under the jurisdiction of ASTM Committee D35 on Geosyn-
thetics and is the direct responsibility of Subcommittee D35.02 on Endurance
2
Properties. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Sept. 1, 2023. Published October 2023. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1999. Last previous edition approved in 2017 as D6389 – 17. DOI: Standards volume information, refer to the standard’s Document Summary page on
10.1520/D6389-23. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D6389 − 23
Scanning Calorimetry 7. Hazards
NOTE 1—The solutions used in this practice may contain hazardous
D6213 Practice for Tests to Evaluate the Chemical Resis-
chemicals. Appropriate precautions must be taken when handling hazard-
tance of Geogrids to Liquids
ous waste, chemicals, and the immersion solutions. Protective equipment
D6241 Test Method for Measuring Static Puncture Strength
suitable for the chemicals bei
...

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: D6389 − 17 D6389 − 23
Standard Practice for
Tests to Evaluate the Chemical Resistance of Geotextiles to
1
Liquids
This standard is issued under the fixed designation D6389; 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 practice describes the procedures used for testing geotextiles for chemical resistance to liquids. Reinforcement geotextiles
can also be tested per Practice D6213.
1.2 This practice describes test methods for measuring changes in planar dimensions, tensile properties, and other optional
physical, mechanical, and hydraulic properties caused by immersion in test liquids which may be representative of anticipated
end-use conditions. This practice may be used to assess the extent to which a product’s as-manufactured properties are affected
by such immersion.
1.3 This practice is intended to be used in conjunction with either Practice D5322 or D5496. The scope of this practice is limited
to testing and reporting procedures for unexposed and exposed geotextile samples.
1.4 Evaluation or interpretation of test data is beyond the scope of this practice.
1.5 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. For specific warning statements, see Section 7.
1.6 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:
D16 Terminology for Paint, Related Coatings, Materials, and Applications
D123 Terminology Relating to Textiles
D883 Terminology Relating to Plastics
D1238 Test Method for Melt Flow Rates of Thermoplastics by Extrusion Plastometer
D1695 Terminology of Cellulose and Cellulose Derivatives
D3895 Test Method for Oxidative-Induction Time of Polyolefins by Differential Scanning Calorimetry
D4439 Terminology for Geosynthetics
D4491D4491/D4491M Test Methods for Water Permeability of Geotextiles by Permittivity
1
This practice 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 June 1, 2017Sept. 1, 2023. Published June 2017October 2023. OrginallyOriginally approved in 1999. Last previous edition approved in 20162017
as D6389 – 99 (2016).D6389 – 17. DOI: 10.1520/D6389-17.10.1520/D6389-23.
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 ----------------------
D6389 − 23
D4533D4533/D4533M Test Method for Trapezoid Tearing Strength of Geotextiles
D4595D4595/D4595M Test Method for Tensile Properties of Geotextiles by the Wide-Width Method
D4603 Test Method for Determining Inherent Viscosity of Poly(Ethylene Terephthalate) (PET) by Glass Capillary Viscometer
D4632D4632/D4632M Test Method for Grab Breaking Load and Elongation of Geotextiles
D4716D4716/D4716M Test Method for Determining the (In-plane) Flow Rate per Unit Width and Hydraulic Transmissivity of
a Geosynthetic Using a Constant Head
D4751 Test Methods for Determining Apparent Opening Size of a Geotextile
D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics
D5261 Test Method for Measuring Mass per Unit Area of Geotextiles
D5322 Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids
D5496 Practice for In-Field Immersion Testing of Geosynthetics
D5885D5885/D5885M Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by High-Pressure Differential
Scanning Calorimetry
D6213 Practice for Tests to Evaluate the Chemical Resistance of
...

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ASTM D6637/D6637M-15(2023)(Test Method)
Standard Test Method for Determining Tensile Properties of Geogrids by the Single or Multi-Rib Tensile Method

SIGNIFICANCE AND USE
5.1 The determination of the tensile force-elongation values of geogrids provides index property values. This test method shall be used for quality control and acceptance testing of commercial shipments of geogrids.  
5.2 In cases of dispute arising from differences in reported test results when using this test method for acceptance testing of commercial shipments, the purchaser and supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing began. If a bias is found, either its cause must be found and corrected or the purchaser and supplier must agree to interpret future test results in light of the known bias.  
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SCOPE
1.1 This test method covers the determination of the tensile strength properties of geogrids by subjecting strips of varying width to tensile loading.  
1.2 Three alternative procedures are provided to determine the tensile strength, as follows:  
1.2.1 Method A—Testing a single geogrid rib in tension (N or lbf).  
1.2.2 Method B—Testing multiple geogrid ribs in tension (kN/m or lbf/ft).  
1.2.3 Method C—Testing multiple layers of multiple geogrid ribs in tension (kN/m or lbf/ft).  
1.3 This test method is intended for quality control and conformance testing of geogrids.  
1.4 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.  
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SIGNIFICANCE AND USE
5.1 This test method is recommended for the evaluation of the performance of water-saturated soil-geotextile systems under unidirectional flow conditions. The results obtained may be used as an indication of the compatibility of the soil-geotextile system with respect to both particle retention and flow capacity.  
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5.3 This test method is intended for site-specific investigation therefore is not an index property of the geotextile, and thus is not intended to be requested of the manufacturer or supplier of the geotextile.
SCOPE
1.1 This test method covers performance tests applicable for determining the compatibility of geotextiles with various types of water-saturated soils under unidirectional flow conditions.  
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1.2.1 For soils with a plasticity index lower than 5, the systems compatibility shall be evaluated per this standard.  
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Standard Practice for Pressurized Air Channel Evaluation of Dual-Seamed Geomembranes

SIGNIFICANCE AND USE
5.1 The increased use of geomembranes as barrier materials to restrict liquid or gas movement, and the common use of dual-track seams in joining these sheets, has created a need for a standard nondestructive test by which the quality of the seams can be assessed for continuity and watertightness. The test is not intended to provide any indication of the physical strength of the seam.  
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SCOPE
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SIGNIFICANCE AND USE
4.1 The use of reinforced geomembranes as barrier materials has created a need for a standard test method to evaluate the quality of seams produced by thermo-fusion methods. This test method is used for quality control purposes and is intended to provide quality control and quality assurance personnel with data to evaluate seam quality.  
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SIGNIFICANCE AND USE
5.1 This test method yields the flux of water through a saturated GCL specimen that is consolidated, hydrated, and permeated under a prescribed set of conditions.  
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SIGNIFICANCE AND USE
5.1 Use of the SIM decreases the time required for creep to occur and the obtaining of the associated data.  
5.2 The statements set forth in 1.5 are very important in the context of significance and use, as well as scope of the standard.  
5.3 Creep test data are used to calculate the creep modulus of materials as a function of time. These data are then used to predict the long-term creep deformation expected of geosynthetics used in drainage applications.
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SCOPE
1.1 This test method covers accelerated testing for compressive creep properties using the stepped isothermal method (SIM).  
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1.5 This method can be used to establish the sustained load compressive creep characteristics of a geosynthetic that demonstrates a relationship between time-dependent behavior and temperature. Results of this method are to be used to augment results of compressive creep tests performed at 20 ± 1 °C and may not be used as the sole basis for determination of long-term compressive creep behavior of geosynthetic material.  
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.7 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.  
1.8 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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ASTM
ASTM D4886-23(Test Method)
Standard Test Method for Abrasion Resistance of Geotextiles (Sandpaper/Sliding Block Method)

SIGNIFICANCE AND USE
5.1 This test method may be used for acceptance testing of commercial shipments of geotextiles, but caution is advised since information on the precision of the test is lacking. Comparative testing as directed in 5.1.1 may be advisable.  
5.1.1 In case of a dispute arising from differences in reported test results when using this test method, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. At a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in light of the known bias.  
5.2 The resistance of abrasion is also greatly affected by the conditions of the tests, such as the nature of abradant, variable action of the abradant over the area of specimen abraded, the tension of the specimen, the pressure between the specimen and abradant, and the dimensional changes in the specimens.  
5.3 The resistance of geotextile materials to abrasion as measured on a testing machine in the laboratory is generally only one of several factors contributing to performance or durability as experienced in the actual use of the material. While “abrasion resistance” and “durability” are frequently related, the relationship varies with different end uses and different factors may be necessary in any calculation of predicted durability from specific abrasion data. Laboratory tests may b...
SCOPE
1.1 This test method covers the determination of resistance of geotextiles to abrasion using an abrasion tester. This test method at this point has only been evaluated for geotextiles—not geomembranes, grids, etc. Therefore, the test method is designated for geotextiles, not geosynthetics, as all products may not lend themselves to this test method for abrasion. If later developments indicate a wider scope for this test method, appropriate changes will be made.  
1.2 The values stated in SI units are to be regarded as standard. The values given in inch-pound units are provided as 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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ASTM
ASTM D6992-16(2023)(Test Method)
Standard Test Method for Accelerated Tensile Creep and Creep-Rupture of Geosynthetic Materials Based on Time-Temperature Superposition Using the Stepped Isothermal Method

SIGNIFICANCE AND USE
5.1 Use of the Stepped Isothermal Method decreases the time required for creep to occur and the obtaining of the associated data.  
5.2 The statements set forth in 1.6 are very important in the context of significance and use, as well as scope of the standard.  
5.3 Creep test data are used to calculate the creep modulus of materials as a function of time. These data are then used to predict the long-term creep deformation expected of geosynthetics used in reinforcement applications.
Note 1: Currently, SIM testing has focused mainly on woven and knitted geogrids and woven geotextiles made from polyester, aramid, polyaramid, poly-vinyl alcohol (PVA), and polypropylene yarns and narrow strips. Additional correlation studies on other materials are needed.  
5.4 Creep-rupture test data are used to develop a regression line relating creep stress to rupture time. These results predict the long-term rupture strength expected for geosynthetics in reinforcement applications.  
5.5 Tensile testing is used to establish the ultimate tensile strength (TULT) of a material and to determine elastic stress, strain, and variations thereof for SIM tests.  
5.6 Ramp and Hold (R+H) testing is done to establish the range of creep strains experienced in the brief period of very rapid response following the peak of the load ramp.
SCOPE
1.1 This test method covers accelerated testing for tensile creep, and tensile creep-rupture properties using the Stepped Isothermal Method (SIM).  
1.2 The test method is focused on geosynthetic reinforcement materials such as yarns, ribs of geogrids, or narrow geotextile specimens.  
1.3 The SIM tests are laterally unconfined tests based on time-temperature superposition procedures.  
1.4 Tensile tests are to be completed before SIM tests and the results are used to determine the stress levels for subsequent SIM tests defined in terms of the percentage of Ultimate Tensile Strength (TULT). Additionally, the tensile test can be designed to provide estimates of the initial elastic strain distributions appropriate for the SIM results.  
1.5 Ramp and Hold (R+H) tests may be completed in conjunction with SIM tests. They are designed to provide additional estimates of the initial elastic and initial rapid creep strain levels appropriate for the SIM results.  
1.6 This method can be used to establish the sustained load creep and creep-rupture characteristics of a geosynthetic. Results of this method are to be used to augment results of Test Method D5262 and may not be used as the sole basis for determination of long-term creep and creep-rupture behavior of geosynthetic material.  
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.8 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.  
1.9 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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ASTM
ASTM D5322-23(Practice)
Standard Practice for Laboratory Immersion Procedures for Evaluating the Chemical Resistance of Geosynthetics to Liquids

SIGNIFICANCE AND USE
4.1 This practice provides a standard immersion procedure for investigating the chemical resistance of a geosynthetic to a liquid waste, leachate, or chemical in a laboratory environment. The conditions specified in this practice are intended both to provide a basis of standardization and to serve as a guide for those wishing to compare or investigate the chemical resistance of a geosynthetic material(s) in a laboratory environment. Practice D5496 can be used should the user need to assess the performance of a geosynthetic in field conditions.  
4.2 This practice is not intended to establish, by itself, the behavior of geosynthetics when exposed to liquids. Such behavior, referred to as chemical resistance, can be defined only in terms of specific chemical solutions and methods of testing and evaluation criteria selected by the user.
SCOPE
1.1 This practice covers laboratory immersion procedures for the testing of geosynthetics for chemical resistance to liquid wastes, prepared chemical solutions, and leachates derived from solid wastes.  
1.2 This standard is not applicable to some geosynthetics such as geosynthetic clay liners (GCLs), because of their composite nature requiring a confining pressure during immersion. However, individual geosynthetic components of the GCL can be tested.  
1.3 This standard was originally developed to supplement and expand EPA 9090 to include all geosynthetics. EPA 9090 has not been updated since 1992.  
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.5 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. For specific hazards statements, see Section 7.  
1.6 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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ASTM
ASTM D7106/D7106M-05(2023)(Guide)
Standard Guide for Selection of Test Methods for Ethylene Propylene Diene Terpolymer (EPDM) Geomembranes

SIGNIFICANCE AND USE
4.1 This standard provides guidance to obtain data that is the most representative of the material’s characteristics and performance. To properly evaluate EPDM, tests should be performed in accordance with specific test methods and procedures.
SCOPE
1.1 This guide covers and provides recommendations for the selection of appropriate test methods for Ethylene Propylene Diene Terpolymer (EPDM) geomembranes used in geotechnical and geoenvironmental applications.  
1.2 This guide includes test methods for three different types of EPDM geomembranes including: scrim-reinforced membranes, composite membranes, and smooth, nonreinforced membranes.  
1.3 The test methods are divided into three categories including manufacturing quality control, optional performance tests, and seam testing.  
1.4 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.  
1.5 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.  
1.6 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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