This International Standard lays down the minimum values for expected strength as a function of time and temperature in the form of reference lines, for use in calculations on polyethylene of raised temperature resistance (PE-RT) pipes.
ISO 24033:2006 history
2009ISO 24033:2009 Polyethylene of raised temperature resistance (PE-RT) pipes - Effect of time and temperature on the expected strength
2006ISO 24033:2006 Pipes made of raised-temperature-resistance polyethylene (PE-RT) - Effect of time and temperature on the expected strength