Piping Material Specification 1PP0H01 Class 150, Polypropylene (Copolymer), 0.000" C.A. Process
standard by Process Industry Practices, 02/01/2001

Piping Material Specification 1PP0H01 Class 150, Polypropylene (Copolymer), Heat Fusion, 0.000" C.A. Process [Complete Revision]
standard by Process Industry Practices, 10/01/2006