Geosynthetic Accreditation Institute


ASTM D413
Standard Test Method for Rubber Property - Adhesion to Flexible Substrate


List of Accredited Laboratories:

  • Lab. #1 - TRI/Environmental, Inc.
  • Lab. #4 - Geosynthetic Institute
  • Lab. #13 - TRI Environmental Inc. (Precision Geosynthetic Laboratories)
  • Lab. #14 - Geotechnics Inc.
  • Lab. #20 - GeoTesting Express, MA
  • Lab. #29 - FITI Testing & Research Institute
  • Lab. #70 - RSA Geolab, LLC
  • Lab. #79 - TRI Geosynthetic Testing & Services (Suzhou)