Assessment for Performance
Plastic Pipes Conference Association # 1988 Bath
Greig, Lawrence
Hydrostatic s~ress rupture testing at 80°C of polyethylene gas pipe currently takes sver 1000 ho7.1rs to determine its good stress cracking performance. This is excessively long for quailty control purposes so a rapid rest is being developed using fatigue pressurlsac. :on, 2gajn on notched pipe at 80°C The performance sf several polyethylene pipes has been assessed which showed qualitative agreemenl !>er!icSn 1-31 conventional stress ~uptur~ and faclgue lifetimes if suitable iaclgue laarina regimes are chosen
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