1. 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 1This test method is not intended to cover precise physical procedures. The constant rate of crosshead movement of this test lacks accuracy from a theoretical standpoint. A wide difference may exist between the rate of crosshead movement and the rate of strain of the specimen indicating that the testing speeds specified may disguise important effects or characteristics of these materials in the plastic state. Further, it is realized that variations in the thicknesses of test specimen, as permitted by this test standard, 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.

1.3 Test data obtained by this test method is relevant and may be appropriate for use in engineering design with consideration of test conditions as compared to in-service conditions.

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 and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D638 Test Method for Tensile Properties of Plastics

D4000 Classification System for Specifying Plastic Materials

D4439 Terminology for Geosynthetics

D5199 Test Method for Measuring the Nominal Thickness of Geosynthetics

D5994 Test Method for Measuring Core Thickness of Textured Geomembranes

E4 Practices for Force Verification of Testing Machines

E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

Keywords

nonreinforced; percent break elongation; percent yield elongation; polyethylene; polypropylene; tensile break strength; tensile yield strength; Geomembranes; Nonreinforced plastics; Polyethylene (PE) geomembrane applications; Polypropylene (PP) geomembranes; Tensile properties/testing--plastics;

ICS Code

ICS Number Code 59.080.70 (Geotextiles)

DOI: 10.1520/D6693-03

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