Specifications include, but are not limited to: The polyethylene pipe shall be a high performance HDPE pipe, conforming to ASTM D1248 (Type III, Class C). Minimum cell classification values shall be PE345434C as referenced in ASTM D 3350. 8-inch diameter pipe shall be SDR 17 and 6-inch diameter pipe shall be SDR 11. The pipe shall contain a minimum of two percent carbon black. The pipe shall be comprised of new, first quality material. Each standard and random length of pipe in compliance with this specification shall be clearly marked at a minimum: (1) pipe size, (2) SDR number, and (3) class and profile numbers. The pipe shall be homogenous throughout and free of visible cracks, punctures, foreign inclusions or other deleterious defects and shall be identical in color, density, melt index, and other physical properties.