Michael's Security Doors

The Category 3 Cyclone Missile Test - AS 1170.2

This Industry Standard test simulates one of the conditions of Category 3 Cyclone flying debris.

This test is based on the same principle as the Australian Standard Dynamic Impact test, only it's a lot more severe.

A 4 kilogram block of hardwood is fired as a missile into the Crimsafe® test panel. At impact it is moving at 54 kilometres per hour (15 metres per second). To pass the test, the deflection of the panel must not come within a prescribed distance to the glass window panel behind it.

Every product in the Crimsafe range passes this test because at impact the hooking feature of the patented Screw-ClampTM (which runs along every edge of the product) levers into the aluminium frame and creates what's called a "single frame member". The effect is that the load is spread right around the perimeter of the product, rather than allowing the force to be concentrated at the point of impact. The mechanical fastening of the clamp to the Tensile-Tuff ® Security mesh also gives it huge strength and resists the tendency of the mesh to be pulled out of the frame. These features permit Crimsafe to withstand enormous force.

The Category 4 Cyclone Missile and Ballistic - Test AS 1170.2 (Commercial System Only)

This Industry Standard is the toughest test on the security scene in Australia, and Crimsafe's® Commercial Security System easily passes it.

In an adaptation of American Tornado Testing procedures, we had BHP's testing centre recreate a Category 4 Cyclone to test our Commercial Systems strength under extreme stress.
Under controlled conditions they shot a piece of hardwood weighing 4kgs into the screen at a speed of 72 kilometres per hour (20 metres per second).

Then in a separate test they took a series of 5 steel balls, each weighing two grams and almost a centimetre in diameter, and sent them smashing into the screen at 108 kilometres per hour (30 metres per second).

The test panel fails if the 4kg missile penetrates the mesh, or if any of the steel balls perforate the mesh.

Our commercial system was dented, but unbroken.

The Fire Attenuation Test - FSZ0688

This Industry Standard is not a pass/fail type test. The product simply gets a rating in the form of a percentage, for every unit of heat that it does not permit to pass through it, from one side to the other. The percentage of heat attenuation is calculated every 5 minutes for as long as the test lasts.

A Test panel is installed in the side of a furnace lined with refractory bricks and materials with thermal properties as specified in AS 1530: Part 4-1997 and heat panels using natural gas are set up on the outside. To allow comparison, another opening in the furnace is left unfitted, so that baseline data for the 100% transfer of heat can be compared against the test panel. Furnace temperatures exceed 850o Celsius.

In the case of a Crimsafe® screen, the rating it achieved for attenuation of radiant heat flux was 45%.

That means that almost half of the heat from a fire source on the other side of the screen does not transfer through Crimsafe Tensile-Tuff® Security mesh - a very high rating.

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