PENDULUM SLIPPERINESS METERING
Strumento per la determinazione della resistenza di attrito.
Instrument for the determination of the frictional resi¬stance.
The Pendulum is based on the Izod principle: a pendulum consisting of a tubular arm rotates about a spindle attached to a vertical pillar. At the end of the tubular arm a head of constant mass is fitted with a rubber slider.
The pendulum is released from a horizontal position so that it strikes the sample surface with a constant velocity.
The distance travelled by the head after striking the sam¬ple is determined by the friction of the sample surface. A reading of Skid Resistance Values is obtained.