Historical
DIN EN 744:1995
Thermoplastics pipes - Test method for resistance to external blows by the round-the-clock method (FOREIGN STANDARD)
The document specifies a method for determining the resistance to external blows of thermoplastics pipes with circular cross sections by using the round-the-clock method. The method ist intended to be applied to isolated batches of pipe. For type testing and audit testing, 0 °C or -20 °C are they applicable.
Deutsches Institut für Normung [din]