Geosynthetic Accreditation Institute


ASTM D3350
Standard Specification for Polyethylene Plastics Pipe and Fittings Materials


List of Accredited Laboratories:

         Lab. #1 - TRI Environmental, Inc.

         Lab. #38 - CTT Group (SAGEOS)

         Lab. #42 - NPUST (GSI-Taiwan)


[Method List]

[Laboratory List]