- PPI Role Restructure: In October 2018, the PPI membership resoundingly passed a budget supporting a role restructure. A new engineer would assume responsibilities for the PPI Technical Committee (TC), Power & Communication Division (PCD) and Education Committee. This allows S. Patterson to move 100% to the PPI HSB and L. MacNevin to move 100% to the Building & Construction Division (BCD). The official search begins this March with the intent to hire mid-year.
- PPI HSB Search Listing feature: To confirm a listing is active at the time of your search, use the PPI HSB Search Listing feature: https://listings.plasticpipe.org/Search. The pdf documents, posted under PPI Publications, are a snap-shot picture - they only show the active listings at the time the documents were made.
- EOY Renewal Process Automation: Code development completed late 2018. Roll-out was postponed until the 2019 invoicing season completes (~Q2 2019). This ensures enough time for the beta-testers to provide input and if necessary, the developers to revise the code.
- PPI TR-9 Recommended Design Factors and Design Coefficients for Thermoplastic Pressure Pipe: A PPI HSB TG is scheduled to discuss and resolve the remaining comments received on the last concurrent ballot (PPI HSB/ PPI TC). Once these comments are addressed, a new concurrent ballot will be released. Also, the PPI HSB will leverage the discussions into the HSB DF Methodology TG.
- Acceptance of Data Policy (draft, formerly "Recognized Laboratories"): This draft policy details requirements to accept hydrostatic data, generated and collected per ASTM D1598 and ISO 1167 for three scenarios: a laboratory for hire, a certifying agency using a test laboratory and a manufacturers' "in-house" laboratory. Negatives and comments from the last ballot are addressed and the draft policy is prepared for another ballot. Approval of this draft policy is anticipated in the near future. Once approved, policy will post to the PPI HSB Announcement page for industry review and comment. Pending input received during the public comment period, communications on the implementation time frame and policy details will be released.
- Refined Bidirectional Shift Factors: As more materials enter the pressure pipe industry and others increase their historical elevated temperature as well as improve performance, continued development of Hydrostatic Design Basis (HDB) validation methods are needed. As such, the PPI HSB has been exploring refined bidirectional shift factors used for polyethylene compounds and development of factors for others materials. To date, the PPI HSB leveraged existing industry studies and completed initial exploratory work in 2018. During the February 2019 meeting, a proposal was reviewed and discussed to continue the research efforts. Work is currently underway to revise this proposal.
- PEX 0.63 DF Factor (draft): The latest ballot closed and negatives/ comments are addressed. The revised draft policy is being prepared for another ballot.
- HDS at Elevated Temperatures: In response to the growing use of plastic pipes in new applications and/or at higher temperatures relative to their historical use, the PPI HSB agreed to begin discussions on draft policy detailing listing Hydrostatic Design Stresses (HDS) at elevated temperatures (>73ºF baseline).
- PA Policies (draft) and PVDF Policies (draft): These projects are reactivated. Plans are to review and discuss the revised drafts during the August 2019 meeting. *If you are a PA or PVDF resin manufacturer and have interest in providing input on the drafts, please contact Sarah Patterson.
- PPI TR-2 Ingredient Renewal Policy (draft): This policy would implement expiration dates, aligning to PPI TR-3 Part A Experimental and Standard Grade level listings, as well as require data submittal for renewal. The draft policy was significantly revised during the February 2019 PPI HSB meeting to include utilizing the NSF International Ingredient Audit Program, where possible. This ingredient audit program is in the second year of implementation.
- PVC Resin - Inherent Viscosity and Compacted Bulk Density Measurements: Review and discussion of the inherent viscosity and the compacted bulk density test methods are underway. These discussions focus on the use of automatic equipment to determine the inherent viscosity and the method to determine the compacted bulk density. *If you are a PVC resin manufacturer and have interest in submitting data confidentially, please contact Sarah Patterson.
- Composite Policies (Group3) / Multilayer Pipe Policies (TN23/ TR3): All policy language in PPI TN-23 Coextruded Pipe document is incorporated into the new draft PPI TR-3 Part K for composites structures. Revisions are well underway to reflect Composite-Group3 structures. In addition, the pressure design basis (PDB) test matrixes in PPI TR-3 Part A.7 (Table A.7.1 and A.7.2) were discussed. Revisions are proposed which keep the requirement for data at the baseline/ highest elevated temperatures but to possibly make the intermediate temperature optional. A separate PPI Technical Committee (PPI TC) project is addressing the remaining PPI TN-23 paragraph focused on pipe striping.
- PPI TR-3/2018 is posted to the PPI web page.
- 180ºF HDB PE Compound Policy. This policy is approved. This policy addresses requirements for listing polyethylene compounds at 180ºF (82.2ºC). It is posted for industry review and comment. Click to review or download.
- NEW Listing Process Explained document: A new document is now available for PPI TR-4 Part B (MRS/CRS) policies. This document is a high-level overview of the steps taken to list an MRS/CRS. For full requirements, read the latest version of PPI TR-3 Part B.
- PPI TR-2/2019 is posted to the PPI web page. The 2019 version includes the new Part D: PPI TR-2 New Part D: Requirements for Obtaining a Dependent Listing of the PPI PVC Range Composition: This new policy is effective January 1, 2019. **NOTE: All manufacturers currently holding or have held an active Dependent Listing of the PPI PVC Range Composition are exempt.
- PPI TR-4/2019 is posted on the PPI web page.