1.1 ,This specification covers requirements and test methods for materials, workmanship, dimensions, perforations, pipe stiffness, elongation, joint separation resistance, quality of extruded polyethylene, brittleness, testing, and marking of corrugated polyethylene (PE) pipe and fittings for mine heap leach pile aeration. It covers with nominal sizes 100 mm (4 in.), 150 mm (6 in.), 200 mm (8 in.), 250 mm (10 in.) 300 mm (12 in.), 375 mm (15 in.), and 450 mm (18 in.) diameter.