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ÖNORM EN 1411:1997-09

Заменен
Plastics piping and ducting systems - Thermoplastics pipes - Determination of resistance to external blows by the staircase method
This standard specifies a method for determining the resistance to external
blows of themoplastics pipes by using the staircase method. This method is
not applicable to perforated pipes.
The method is intended to be applied for pipe testing at 0 OC. When
necessary the method can be applied at -20 OC or +23 O C .
In dieser ÖNORM wird ein Verfahren zur Bestimmung der Widerstandsfähigkeit von Rohren mit kreisförmigem Querschnitt aus Thermoplasten gegen äußere Schlagbeanspruchung im Stufenverfahren (staircase method) festgelegt.
ICS
23.040.20 Plastics pipes / Пластмассовые трубы