The Pendulum test simulates the effect of an accidental impact on a glazing unit. It is performed by means of a pendulum consisting of two weighted wheels having a total mass of 50 kg, that is left to swing against the clamped test specimen from different calibrated heights.

The purpose of the test is to classify a glazed element with respect to the coding specified by the EN 12600 standard: in particular, the test defines whether a laminated glass can be considered a “safety glass”.