Geosynthetic Accreditation Institute

ASTM D1621
Test Method for Compressive Properties of Rigid Cellular Plastics (08.01)

List of Accredited Laboratories:

  • Lab. #1 - TRI/Environmental
  • Lab. #3 - Golder Associates
  • Lab. #4 - Geosynthetic Institute
  • Lab. #5 - NTH Consultants
  • Lab. #13 - Precision Geosynthetics Laboratories
  • Lab. #14 - Geotechnics Inc.
  • Lab. #18 - Shaw Environmental & Infrastructure, Inc.
  • Lab. #19 - HTS Inc., Consultants
  • Lab. #38 - SAGEOS/CTT Group
  • Lab. #41 - SGI Testing Services, LLC
  • Lab. #42 - NPUST (GSI-Taiwan)
  • Lab. #48 - Tenax Corporation

[Method List]

[Laboratory List]

[GAI page]