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Alu Selekta has been proven to be non-combustible but when is a material deemed combustible?

Alu Selekta has recently passed the AS1530.1 non-combustibility test.

The results indicate that the solid aluminium profile is considered to be non-combustible in accordance with Clause C1.12(e) of the BCA and permitted to be used where the BCA nominates non-combustible material.

As part of the AS 1530.1 small-scale material fire test, a small sample of Alu Selekta was immersed in a 750°C furnace.

The test method is intended to provide material property data on individual materials, not systems or composites. However, if any one layer or element of a system or product is combustible then the whole system or product is considered combustible.

There are three criteria in AS 1530.1 where a material is deemed combustible:

  1. The mean duration of sustained flaming, as determined in accordance with AS 1530.1 Clause 3.2, is other than zero. In summary, the material is combustible if flaming sustained for a period of 5 seconds or longer occurs at any time during the test for any of the five samples tested.
  2. The mean furnace thermocouple temperature rise, as determined in accordance with AS 1530.1 Clause 3.1, exceeds 50°C.
  3. The mean specimen surface thermocouple temperature rise, as determined in accordance with AS 1530,1 Clause 3.1, exceeds 50°C.
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