Geosynthetic Accreditation Institute


ASTM D6637
Test Method for Determining Tensile Properties of Geogrids by the Single or Multi-Rib Tensile Method


List of Accredited Laboratories:

  • Lab. #1 - TRI/Environmental
  • Lab. #4 - Geosynthetic Institute
  • Lab. #13 - Precision Geosynthetic Labs, CA
  • Lab. #29 - FITI
  • Lab. #38 - SAGEOS/CTT Group
  • Lab. #41 - SGI Testing Services, LLC
  • Lab. #42 - NPUST (GSI-Taiwan)
  • Lab. #45 - Polyfelt Geosynthetics SDN Bhd.

[Method List]

[Laboratory List]

[GAI page]