Geosynthetic Accreditation Institute


ASTM D3015
Test Method for Microscopic Examination of Pigment Dispersion in Plastic Compounds (08.02)


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. #18 - Shaw Environmental & Infrastructure, Inc.
  • Lab. #19 - HTS Inc., Consultants
  • Lab. #20 - GeoTesting Express
  • Lab. #34 - GSE Lining Technology, Inc. (Richey Road Lab)
  • Lab. #37 - GSE Chile
  • Lab. #47 - Precision Geosynthetic Laboratories, TX
  • Lab. #49 - Engepol Geossinteticos Ltda.

[Method List]

[Laboratory List]

[GAI page]