Geosynthetic Accreditation Institute


ASTM D1505
Test Method for Density of Plastics by the Density-Gradient Technique (08.01)


List of Accredited Laboratories:

  • Lab. #1 - TRI/Environmental
  • Lab. #3 - Golder Associates
  • Lab. #4 - Geosynthetic Institute
  • Lab. #5 - NTH Consultants, Ltd.
  • Lab. #13 - Precision Geosynthetic Laboratories, CA
  • Lab. #14 - Geotechnics, Inc.
  • Lab. #19 - HTS Inc., Consultants
  • Lab. #20 - GeoTesting Express
  • Lab. #29 - FITI
  • Lab. #34 - GSE Lining Technology, Inc. (Richey Road Lab)
  • Lab. #35 - GSE Lining Technology, Inc. (Hardy Street Lab)
  • Lab. #40 - GSE Lining Technology, Inc. (Kingstree, SC)
  • Lab. #47 - Precision Geosynthetic Labs, TX
  • Lab. #48 - Tenax Corporation
  • Lab. #49 - Engepol Geossinteticos Ltda.
  • Lab. #50 - Advanced Drainage Systems Inc.
  • Lab. #51 - Solmax International Inc.
  • Lab. #54 - Hancor Inc.

[Method List]

[Laboratory List]

[GAI page]