Delta MW and EPS-FR Panel Awning and Patio Roof System 
 
Revision 1-4 
17 
 
 
Low Carbon Steel  
 
 
 
 
Test 
Report  
Test Specimen 
Relevant Performance 
11. 
AS1530.1:1994 
CSIRO Report 
No. FNC12440 
(refer to Section 
C.2) 
Low Carbon Steel 
Manufactured by 
Bluescope Australia 
Not deemed 
combustible 
 
3.3.2 
Extrapolation of Fire Test Results 
All relevant fire testing referenced within this report are given in Table 3-4 with a summary of the fire 
performance achieved in each case.  
A number of coated steel and steel-alloy sheet metals have been tested to AS1530.3:1999 both 
independently and as part of a sandwich panel. When tested independently (tests 7 to 10 in Table 3-4), the 
test results obtained for each AS1530.3 index (Ignitability, Spread of Flame, Heat Evolved and Smoke 
Developed) are almost identical with only a small variance in the Smoke Developed Index. In all cases, the 
AS1530.3 results are within the following value range:  
• 
Ignitability Index: 0 
• 
Spread of Flame Index: 0 
• 
Heat Evolved Index: 0 
• 
Smoke Developed Index: 0-3 
When the AS1530.3 test is repeated with the steel facings bonded either side of a material deemed not 
combustible under AS1530.1, in this case mineral wool (tests 1, 2 & 3 in Table 3-4), the results give a near 
identical outcome to tests 7 to 10 in Table 3-4, that is: 
• 
Ignitability Index: 0 
• 
Spread of Flame Index: 0 
• 
Heat Evolved Index: 0 
• 
Smoke Developed Index: 2-3 
Similarly, when the AS1530.3 test is repeated with the steel facings bonded either side of a combustible 
EPS-FR core material (tests 4 and 5 in Table 3-4), the results again provide a near identical outcome to 
tests 7 to 10 in Table 3-4, that is: 
• 
Ignitability Index: 0 
• 
Spread of Flame Index: 0 
• 
Heat Evolved Index: 0 
• 
Smoke Developed Index: 2 
Based on these results and with reference to the tested facings and substrates, the tested indices are 
independent of the substrate to which the coated metallic facings are bonded. The results are indicative 
only of the fire performance of the coated metallic facings during the early stages of fire development, 
before involvement of the substrate. As such, the test results are independent of the thickness of the core 
material used (substrate) to which the coated metallic facings are bonded. 
Furthermore, the AS1530.3 results in tests 2, 3, 4 & 5 (Table 3-4) indicate that the DeltaOrb™ system and 
the DeltaTrim™ system achieves identical early fire hazard performance. Based on these results, the 
differing profiles of the DeltaOrb™ and DeltaTrim™ systems do not appear to have any significant effect 
on the achieved fire performance of the panels. As such, the DeltaOrb™ and DeltaTrim™ panels may be 
used interchangeably and the outcomes of this assessment remain applicable to both panel types.  

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