ASTM D6693/D6693M-20
Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes

Standard No.

ASTM D6693/D6693M-20

Release Date

2020

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D6693/D6693M-20

Scope

1.1 This test method covers the determination of the tensile properties of nonreinforced geomembranes in the form of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment, temperature, and machine speed. 1.2 This test method can be used for testing materials thickness between 0.25 mm [0.010 in.] and 6.3 mm [0.25 in.]. NOTE 1—This test method is not intended to precisely measure physical properties of a geomembrane for design purposes. This is an “index test” intended to be used for quality control and specification conformance purposes. The constant rate of crosshead movement of this test lacks accuracy from a theoretical standpoint, since crosshead movement as opposed to actual strain is used. A wide difference may exist between the rate of crosshead movement and the rate of strain in particular areas of the specimen since the specimen does not have a uniform width or crosssectional area. This may disguise important effects or characteristics of these materials in the plastic state. Use of an extensometer, not included in this test, would more accurately measure strain and strain rate but would still have limitations for some geomembranes. Further, it is realized that variations in the thicknesses of test specimens, as permitted by this test method, produce variations in the surface-volume ratios of such specimens, and that these variations may influence the test results. Hence, where directly comparable results are desired, all samples should be of equal thickness. Special additional tests should be used where more precise physical data are needed. Test Method D4885 is a suitable performance test for many applications. 1.3 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. 1.4 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.

ASTM D6693/D6693M-20 Referenced Document

• ASTM D374/D374M Standard Test Methods for Thickness of Solid Electrical Insulation*， 2023-10-01 Update
• ASTM D4000 Standard Classification System for Specifying Plastic Materials*， 2023-03-15 Update
• ASTM D412 Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers8212;Tension
• ASTM D4439 Standard Terminology for Geosynthetics*， 2024-02-01 Update
• ASTM D4885 Standard Test Method for Determining Performance Strength of Geomembranes by the Wide Strip Tensile Method
• ASTM D5199 Standard Test Method for Measuring the Nominal Thickness of Geosynthetics*， 2024-04-21 Update
• ASTM D5994/D5994M Standard Test Method for Measuring Core Thickness of Textured Geomembranes*， 2021-07-01 Update
• ASTM D638 Standard Test Method for Tensile Properties of Plastics
• ASTM E2586 Standard Practice for Calculating and Using Basic Statistics
• ASTM E4 Standard Practices for Force Verification of Testing Machines
• ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM D6693/D6693M-20 history

• 2020 ASTM D6693/D6693M-20 Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes
• 2004 ASTM D6693/D6693M-04(2015)e1 Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes
• 2004 ASTM D6693-04(2010) Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes
• 2004 ASTM D6693-04 Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes
• 2003 ASTM D6693-03 Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes
• 2001 ASTM D6693-01 Standard Test Method for Determining Tensile Properties of Nonreinforced Polyethylene and Nonreinforced Flexible Polypropylene Geomembranes