Plastic Pipe Institute

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 (2010).
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 (2010).
TN-32 UV Labeling Guidelines for PEX Pipes (2010).
TN-34 Installation Guidelines for Electrofusion Couplings 14" and Larger (2009).
TN-35 General Guidelines Repairing Buried HDPE Potable Water Pressure Pipes - This document is no longer in publication and has been incorporated into the PPI Handbook of Polyethylene Pipe, Chapter 15.
TN-36 General Guidelines for Connecting HDPE Potable Water Pressure Pipes to DI and PVC Piping Systems - This document is no longer in publication and has been incorporated into the PPI Handbook of Polyethylene Pipe, Chapter 9.
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 (2011)
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)
TN 43 PE Compound Categorization for Potable Water Applications (2012)