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Changes in the HDPE Service Tubing Market that Are Critical to Your Municipal <br />Utility's Standards and Specifications <br />Model Specification: Slow Crack Growth Resistance -Shall be <br />All Water Service Tubing shall meet the measured in accordance with ASTM <br />following minimum standards: F1473 (PENT). The minimum <br />required time to failure shall be a <br />Material: minimum of 4000 hours. <br />Tubing to be produced ONLY with <br />approved bimodal PE 3408/PE 100/ <br />PE 4710 listed resins. <br />Blue Tubing to have a 5 year Florida UV <br />Rating <br />Preferred Resin - DOW Continuum <br />DGDC 2480BK, High Density <br />Polyethylene - PE 100/PE 4710 <br />Minimum Cell Classification - 445574 <br />as defined in ASTM D3350 <br />Pressure Rating -Compounds Shall have a <br />PPI recommended hydrostatic design <br />basis (HDB) of 1600 psi <br />Pressure Rating -Compounds shall have <br />a PPI recommended Hydrostatic <br />Design Basis (HDB of 1600 psi at <br />68 degrees Fahrenheit (20 degrees <br />Celsius). <br />Pressure Rating at Elevated Temperatures <br />- Compounds shall have a PPI <br />recommended HDB of 1000 psi at <br />176 degrees Fahrenheit (80 degrees <br />Celsius). <br />Packaging: <br />Tubing shall be coiled with a 29 inch <br />center <br />Tubing coils shall be taped at four points <br />equidistance around the coil <br />Tape shall have a minimum of four wraps <br />around the coil. <br />On coils of greater than 100 feet the coil <br />will be taped at each 100 ft. interval. <br />Coils shall be marked with color coded <br />tape (color =pressure rating) and <br />indicating the footage in the coil. <br />140 Journal NEWWA June 2(108 <br />