Now that ASTM F2160 Standard Specification for Solid Wall High Density Polyethylene (HDPE) Conduit Based on Controlled Outside ... improved slow crack growth resistance (ESCR) is required, and there ...

As a result, this method improved the oxidation induction time (OIT) and the environmental stress cracking resistance (ESCR) value of HDPE compared with the traditional one-step extrusion method.