The policies and procedures in TR-3 are intended to cover HDB/ HDS/ PDB/ SDB/ MRS/ CRS listings for most thermoplastic piping materials. PPI recognizes there may be unusual cases, new materials or structures, issues or circumstances that are not covered in TR-3, and that may justify an exception to the standard policies. To allow manufacturers an opportunity to have their material(s) listed by PPI when this occurs, the HSB has provided a "Special Case" system. The manufacturer may present its "Case" to the HSB at one of their two annual meetings, usually in February and August, using the approved "Checklist for HSB Submissions" form in PPI TR-3 Appendix X.1.
REQUEST A HSB SPECIAL CASE
GUIDANCE ON HSB SPECIAL CASES
- Preliminary Screening Letter
- Cover Letter
- Compound Checklist for HSB Submissions
- Compound (vinyl) Checklist for HSB Submissions
- Presentation TEMPLATE