Geotextiles are made of synthetic fibres manufactured in a woven or loose non-woven manner to form blanket type products. They are rot proof and permeable to water and offer resistance to penetration damage. In land fill applications they are frequently used as a protection layer to geomembranes.
| Type of test / Properties measured / Range of measurement | Standard Specifications |
| Dynamic perforation test (cone drop test) | BS EN ISO 13433 |
| Nominal thickness | BS EN ISO 9863-1 ASTM D 5199 |
| Mass per unit area | BS EN ISO 9864 |
| Wide-width tensile test | BS EN ISO 10319 |
| Static puncture test (CBR-Test) | BS EN ISO 12236 |
| Grab breaking load and elongation | ASTM D 4632 |
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