Geosynthetic Accreditation Institute


ASTM D4885
Test Method for Determining Performance Tensile Strength of Geomembranes Using Wide Strip Testing (04.08)


List of Accredited Laboratories:

  • Lab. #1 - TRI EnvironmentalInc.
  • Lab. #4 - Geosynthetic Institute
  • Lab. #13 - TRI Environmental Inc. (Precision Geosynthetic Laboratory)
  • Lab. #14 - Geotechnics, Inc.
  • Lab. #20 - GeoTesting Express
  • Lab. #29 - FITI (GSI-Korea)
  • Lab. #38 - CTT Group (SAGEOS)
  • Lab. #41 - SGI Testing Services, LLC
  • Lab. #85 - Bombay Textile Research Assoc.

[Method List]

[Laboratory List]