This Architectural Drawing is AutoCAD 2d drawing of Detail of HDPE in AutoCAD, dwg file. HDPE pipe shall have a minimum density of 0.955 grams per cubic centimeter. All HDPE pipe and fittings shall have a Hydrostatic Design Basis (HDB) of 1,600 psi. meeting the requirements of Standard Dimension Ration (SDR) 17 as MINIMUM STRENGTH.