OTHER RELEVANT PPI TRs/ TNs
TN-7 – Nature of Hydrostatic Stress Rupture Curves
TR-9 – Recommended Design Factors and Design Coefficients for Thermoplastic Pressure Pipe - Unavailable, currently under revision.
TN-16 – Rate Process Method for Projecting Performance of Polyethylene Piping Components
TN-23 – Guidelines for Establishing the Pressure Rating for Multilayer and Coextruded Plastic Pipes (this has been archived)
TN-28 – Guide to Differences in Pressure Rating PE Water Pipe between the ASTM and ISO Methods