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The Knife Shear Test
This test is designed to simulate a knife attack as a burglar seeks quiet entry into your house. In this case a standard cutting blade such as a Stanley knife is used on the basis that it is an instrument that is readily concealable and also readily available, to allow repeatable, consistent tests.
Using a specially designed machine, the knife is drawn along a 25cm line down the test panel 3 times.
The test panel fails if a continuous penetration measuring more than 15cm is achieved after the 3 passes.
The Dynamic Impact Test
This test was introduced to simulate a kick to a security
screen door after it was found that grilles fitted to security screen doors were subject to impact breakage through either forward or reverse kicking of the grille panel.
This test is performed with a swinging leather bag filled with sand and lead and weighing between 36 and 46kg (101.4 Lbs). At impact the bag imparts 100 joules (737.6 Ft-Lbs) of energy to the panel being tested. The test is repeated 5 times, simulating repeated kicking as the burglar attempts to break into your home.
The test panel fails the test if the infill material (mesh) comes out of the door or window framing, or if the impact breaches the material in any way.