1.1 This test method is used to measure the index puncture resistance of geomembranes and related products. 1.2 The use of Test Method D 4833 may be inappropriate for testing some woven geotextiles or related products which have large openings, such as geonets and geogrids. 1.3 It is recommended that geotextile and geotextile related products be tested using Test Method D6241. 1.4 The values stated in