Technical Notes

TN-4 Odorants in Plastic Fuel Gas Distribution Systems (2009).

TN-7 Nature of Hydrostatic Stress Rupture Curves (2005).

TN-11 Suggested Temperature Limits for the Operation and Installation of Thermoplastic Piping in Non-Pressure Applications (1999).

TN-13 General Guidelines for Butt, Saddle and Socket Fusion of Unlike Polyethylene Pipes and Fittings (2007).

TN-14 Plastic Pipe in Solar Heating Systems (2001).

TN-15 Resistance of Solid Wall Polyethylene Pipe to a Sanitary Sewage Environment (2009).

TN-16 Rate Process Method for Projecting Performance of Polyethylene Piping Components (2008).

TN-17 Crosslinked Polyethylene (PEX) Tubing (2008).

TN-19 Pipe Stiffness for Buried Gravity Flow Pipes (2005).

TN-20 Special Precautions for Fusing Saddle Fittings to Live PE Fuel Gas Mains Pressurized on the Basis of a 0.40 Design Factor (2007).

TN-21 PPI PENT test investigation. (2000)

TN-22 PPI Guidelines for Qualification Testing of Mechanical Couplings for PE Pipes in Pressurized Water or Sewer Service (2001).

TN-23 Guidelines for Establishing the Pressure Rating for Multilayer and Coextruded Plastic Pipes (2005).

TN-26 Erosion Study on Brass Insert Fittings used in PEX Piping Systems (2005).

TN-27 Frequently Asked Questions: HDPE Pipe for Water Distribution and Transmission Applications (2009).

TN-28 Guide to Differences in Pressure Rating PE Water Pipe between the ASTM and ISO Methods (2003).

TN-30 Requirements for the Use of Rework Materials in Polyethylene Gas Pipe (2006).

TN-31 Differences Between PEX and PB Piping Systems for Potable Water Applications (2004).

TN-32 UV Labeling Guidelines for PEX Pipes (2004).

TN-34 Installation Guidelines for Electrofusion Couplings 14" and Larger (2004).

TN-35 General Guidelines Repairing Buried HDPE Potable Water Pressure Pipes (2006).

TN-36 General Guidelines for Connecting HDPE Potable Water Pressure Pipes to DI and PVC Piping Systems (2006).

TN-37 Standard Practice for Installation of Annular Corrugated Profile Wall Polyethylene Pipe for Agricultural Drainage or Water Table Control (2006)

TN-38 Bolt Torque For Polyethylene Flanged Joints (2010)

TN-39 Recommended Practices Regarding Application of Pesticides and Termiticides near PEX Pipes (2007)

TN-41 High Performance PE Material for Water Piping Applications (2007)

TN 42 Recommended Minimum Training Guidelines for PE Pipe Butt Fusion Joining Operators for Municipal and Industrial Projects (2009)