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 850° 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 mesh - a very high rating.
To read more on the fire attenuation and bushfire resistance properties of Crimsafe, enter your postcode above to contact a Crimsafe Licensee