Geosynthetic Accreditation Institute

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ASTM D5890
Standard Test Method for Swell Index of Clay Mineral Component of Geosynthetic Clay Liners, (04.09)

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List of Accredited Laboratories:

• Lab. #1 - TRI/Environmental
• Lab. #3 - Golder Associates
• Lab. #4 - Geosynthetic Institute
• Lab. #5 - NTH
• Lab. #13 - Precision Geosynthetic Laboratories, CA
• Lab. #14 - Geotechnics
• Lab. #18 - Shaw Environmental & Infrastructure, Inc.
• Lab. #19 - HTS, Inc. Consultants
• Lab. #20 - GeoTesting Express, Inc.
• Lab. #22 - CETCO (Arlington Heights Lab)
• Lab. #23 - CETCO (Fairmount Lab)
• Lab. #24 - CETCO (Lovell Lab)
• Lab. #29 - FITI
• Lab. #32 - Vector Engineering, Inc.
• Lab. #38 - SAGEOS/CTT Group
• Lab. #46 - Bentofix Technologies, Inc.

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[Method List]

[Laboratory List]

[GAI page]