Geosynthetic Accreditation Institute


ASTM F2136
Standard Test Method for Notched, Constant Ligament-Stress (NCLS) Test to Determine Slow-Crack-Growth Resistance of HDPE Resins or HDPE Corrugated Pipe


List of Accredited Laboratories:

  • Lab. #1 - TRI/Environmental Inc.
  • Lab. #50 - Advanced Drainage Systems
  • Lab. #54 - Hancor Inc.

[Method List]

[Laboratory List]