Geosynthetic Accreditation Institute


ASTM D6525
Test Method for Measuring Nominal Thickness of Permanent Erosion Control Products [04.09]


List of Accredited Laboratories:

  • Lab. #1 - TRI Environmental Inc.
  • Lab. #4 - Geosynthetic Institute
  • Lab.#8 - Propex Operating Co. LLC (Performance Nonwovens Division)
  • Lab. #9 - Lumite Inc.
  • Lab. #13 - TRI Environmental Inc. (Precision Geosynthetic Laboratory)
  • Lab. #38 - CCT Group (SAGEOS)
  • Lab. #42 - NPUST (GSI-Taiwan)
  • Lab. #52 - Ten Cate Geosynthetics (Cornelia Lab)
  • Lab. #63 - TRI Environmental Inc. (TRI South Carolina)
  • Lab. #75 - GEOMATRIX S.A.S.

[Method List]

[Laboratory List]