175 °C in temperature by passing from the device that are brought into oluklama of corrugated paper in the direction perpendicular to the surface of the applied force with the maximum force it can withstand without crushing of the grooves. Unit N.
Corrugated cardboard under standard atmospheric conditions by applying a hydraulic pressure of a pressure value is necessary to be able to explode. Corrugated cardboard gives information about the staying power of the regional forces.
To determine the resistance of the empty box that show The Vertical to be crushed against is made. The result of this test gives information about the resistance box istiflenen crush on top of us. The unit KGF.