What is this standard about?
This International Standard specifies a method for the determination of the resistance to extemal blows of thermoplastics pipes of circular Cross-section; it is called the round-the-clock method.
This method is applicable to isolated batches of pipe tested at 0 “C (information is also given for sampling from the continuous production of Pipe).
NOTE 1 If testing below 0 “C is required, a temperature of - 20 “C is recommended.