Geosynthetic Accreditation Institute


ASTM D1204
Test Method for Linear Dimensional Changes of Nonrigid Thermoplastic Sheeting or Film at Elevated Temperature (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 Geosynthetics Laboratories
  • Lab. #14 - Geotechnics, Inc.
  • Lab. #18 - Shaw Environmental & Infrastructure, Inc.
  • Lab. #19 - HTS Inc. Consultants
  • Lab. #20 - GeoTesting Express
  • Lab. #26 - Agru America Inc.
  • Lab. #29 - FITI
  • Lab. #34 - GSE Lining Technology, Inc. (Richey Road Lab)
  • Lab. #37 - GSE Chile
  • Lab. #38 - SAGEOS/CTT Group
  • Lab. #42 - NPUST (GSI Taiwan)
  • Lab. #51 - Solmax International Inc.
  • Lab. #55 - Atarfil Geomembranes S.L.
  • Lab. #59 - Firestone Building Products

[Method List]

[Laboratory List]

[GAI page]