Tubes en matières thermoplastiques — Détermination de la résistance aux chocs extérieurs — Méthode autour du cadran

Cancels and replaces the first edition (1980). Specifies a method for the determination of the resistance to external blows of thermoplastics pipes of circular cross-section (round-the-clock method). This method is applicable to isolated batches of pipe tested at 0 °C.