Geosynthetic Accreditation Institute
ASTM D4437
Standard of Practice for Determining the Integrity of Field Seams Used in
Joining Flexible Polymeric Sheet Geomembranes - Peel and Shear (04.08)
List of Accredited Laboratories:
- Lab. #1 - TRI/Environmental
- Lab. #3 - Golder Associates
- Lab. #4 - Geosynthetic Institute
- Lab. #5 - NTH Consultants, Ltd.
- Lab. #6 - GeoSystems Consultants
- Lab. #11 - STS Consultants
- Lab. #13 - Precision Geosynthetic Laboratories, CA
- Lab. #14 - Geotechnics, Inc.
- Lab. #18 - Shaw Environmental & Infrastructure, Inc.
- Lab. #19 - HTS Inc., Consultants
- Lab. #20 - GeoTesting Express
- Lab. #29 - FITI
- Lab. #38 - SAGEOS/CTT Group
- Lab. #43 - Ardaman & Associates
- Lab. #47 - Precision Geosynthetics Laboratories, TX
- Lab. #49 - Engepol Geossinteticos Ltda.
- Lab. #52 - GeoSyntec Consultants
[Method List]
[Laboratory List]
[GAI page]