Delta MW and EPS-FR Panel Awning and Patio Roof System Revision 1-4 18 The AS1530.1 test provides determination of combustibility for each material independently. The mineral wool has been tested to AS1530.1 (test 1 in Table 3-4) and is deemed not combustible. Low carbon steel is widely accepted as a non-combustible construction material. This is also confirmed by an AS1530.1 test for low carbon steel manufactured by Bluescope Australia (test 11 in Table 3-4) in which the test outcome demonstrates that the material (low carbon steel) is not deemed combustible. The NCC Guide further illudes to this in a number of cases by explicitly stating - βnon-combustible materials (such as steel)β. On this basis, low carbon steel is assumed to be non-combustible, regardless of who the manufacturer is or whether the manufacturer has tested the material to AS1530.1. This assessment is based on the assumption that EPS-FR is combustible and has the thermal characteristics outlined in Table 3-5. The values given in Table 3-5 were obtained through bench-scale testing that was undertaken by the University of Queensland (UQ) and is available in the UQ cladding material library as sample INS04. Table 3-5. Key thermal properties of EPS-FR in the University of Queensland Cladding Material Library under sample ID INS04. Criteria Symbol Unit INS04 (99% EPS-FR Core) Gross heat of combustion ππ―π ππ± π 39.20 Critical heat flux for ignition πΜ ππ β²β² ππΎ ππ 20.50 Ignition temperature π»ππ β 434 Peak HRRPUA (average) at: πΜ πβ²β² ππΎ ππ At Heat flux of 35 kW/m2 228.06 At Heat flux of 50 kW/m2 291.11 At Heat flux of 60 kW/m2 332.23 Total energy released (average) at: πΈπ π΄π± ππ At Heat flux of 35 kW/m2 28.43 At Heat flux of 50 kW/m2 28.22 At Heat flux of 60 kW/m2 24.52
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