HAR 6-77-37 Design of plastic pipe

accordance with the following formula, subject to the limitations of section 6-77-38: P = 2S x 0.32 t D-t P = Design pressure, gage, kPa#

(psi). S = For thermoplastic pipe the long-term hydrostatic strength determined in accordance with the listed specification at a temperature equal to 23E C (73E F), 38E C (100E F), 49E C (120E F), or 60E C (140E F) for reinforced thermosetting plastic pipe, 75,800 kPa (11,000 p.s.i.). t = Specified wall thickness, mm (in.). D = Specified outside diameter, mm (in.). [Eff ] (Auth: HRS '269-6) (Imp: 49#

C.F.R. '192.121, October 1, 1990)#