AASHTO MP 20:2011 (R2012)
AASHTO MP 20:2011 (R2012) Specification For Steel-Reinforced Polyethylene (Pe) Ribbed Pipe, 300- To 900-Mm (12- To 36-In.) Diameter Describes the requirements and methods of tests for steel-reinforced polyethylene (PE) ribbed pipe, couplings, and fittings for use in surface and subsurface drainage applications.