Geomembranes are most commonly tested for tensile strength using one of three methods; the uniaxial tensile test described in ASTM D639-94, the wide-strip tensile test described in ASTM D4885-88, and the multiaxial tension test described in ASTM D5617-94. The difference in these three methods lies in the boundaries imposed into the test specimens.
Geomembranes are typically evaluated for tensile strength using one of three methods; the uniaxial tensile test outlined in ASTM D639-94, the wide-strip tensile test detailed in ASTM D4885-88, and the multiaxial tension test specified in ASTM D5617-94. The distinction among these three methods is in the boundaries set for the test specimens.