TECHNICAL REPORTS
- TR-2 2021 - PPI PVC Range Composition Listing of Qualified Ingredients
- TR-2 2020 - superseded by 2021
- TR-2 2019 – superseded by 2021
- TR-2 2018 - superseded by 2021
- TR-3 2021 - HDB/HDS/PDB/SDB/MRS/CRS Policies
- TR-3 2020 - superseded by 2021
- TR-3 2018 - superseded by 2021
- TR-3 2017a - superseded by 2021
- TR-4 2021 - PPI Listing of Hydrostatic Design Basis (HDB), Strength Design Basis (SDB), Pressure Design Basis (PDB) and Minimum Required Strength (MRS) Ratings for Thermoplastic Piping Materials or Pipe
- TR-4 2020 - superseded by 2021
- TR-4 2019 - superseded by 2021
- TR-4 2018 - superseded by 2021
- TR-5 2012 A listing of standards for the various types of plastics piping are promulgated by numerous standards-making organizations - Archived
- TR-7 2014 - Method For Calculating An Estimated Weight-Per-Foot of Solid-Wall Plastic Pipe
- TR-9 2002 - Recommended Design Factors for Pressure Applications of Thermoplastic Pipe Materials - Unavailable, currently under revision. Contact PPI staff with questions
- TR-11 2013 - Resistance of Thermoplastic Piping Materials to Micro- and Macro-Biological Attack
- TR-14 2000 - Water Flow Characteristics of Thermoplastic Pipe - Archived
- TR-18 2019 - Weatherability of Thermoplastic Piping Systems
- TR-19 2020 - Chemical Resistance of Plastic Piping Materials
- TR-22 2013 - Polyethylene Plastic Piping Distribution Systems for Components of Liquid Petroleum Gases
- TR-30 2020 - Investigation of Temperatures Attained by Plastic Fuel Gas Pipe Inside Service Repairs
- TR-31 Underground Installation of Polyethylene Piping - This document is no longer in publication and has been incorporated into the PE Pipe Handbook. Installation guidance is in Chapter 7 and hydrostatic testing procedures are in Chapter 2
- TR-33 2012 - Generic Butt Fusion Joining Procedure for Field Joining of Polyethylene Pipe
- TR-34 (2001b) - Disinfection of Newly Constructed Polyethylene Water Mains Document under review and unavailable. Contact PPI staff with questions.
- TR-35 1997 - Chemical & Abrasion Resistance of Corrugated Polyethylene Pipe - Unavailable; currently under review
- TR-36 2000 - This document is no longer in publication and has been incorporated into the upcoming Drainage Handbook
- TR-37 1997 - Drainage Division Standard Specification (100-97) for Corrugated Polyethylene (PE) Pipe for Storm Sewer Applications - Unavailable; currently under review
- TR-38 Structural Design Method for Corrugated Polyethylene Pipe - Drainage Division Guide - Unavailable; currently under review
- TR-39 Structural Integrity of Non-Pressure Corrugated Polyethylene Pipe - Unavailable; currently under review
- TR-40 Evaluation of Fire Risk Related to Corrugated Polyethylene Pipe - Unavailable; currently under review
- TR-41 2018 Generic Saddle Fusion Joining Procedure for Polyethylene Gas Piping
- TR-42 2002 - Agriculture and Drainage - Unavailable; under review for withdrawal. Contact PPI Staff with questions.
- TR-43 2003 - Design Service Life of Corrugated HDPE Pipe - Archived, see the Drainage Handbook, Chapter 8
- TR-44 2006 - Comparison of Traditional HDPE Innerduct and "Fabric Conduit" Alternative - This document is no longer in publication and was replaced by TN-59 - Comparison of HDPE Conduit and Fabric Divider Installed as Innerduct.
- TR-45 2016 - Butt Fusion Joining Procedures for Field Joining of Polyamide-11
- TR-47 2019 - Pipe Stiffness and Deflection Testing of Coilable HDPE Conduit as Related to Burial Depth
- TR-48 2014 - R-Value and Thermal Conductivity of PEX and PE-RT
- TR-49 2020 – Generic Electrofusion User Guide for Field Joining of Polyethylene Gas Piping
- TR-50 2020 - Generic Butt Fusion Joining Procedures for PA12
- TR-51 2020 - Investigation of Benzene in Drinking Water Following the "Camp Fire" in Paradise, CA
- TR-52 2020 - Resistance of PEX Pipe and Tubing to Breakage When Frozen (Freeze-Break Resistance)
- TR-53 2021 - Life Cycle Assessment Summary of Drainage Pipe Alternatives