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Table 8 Yields of CO and HCN from a range of test methods (Marsh & Gann 2013)

From: The fire toxicity of polyurethane foams

Test type Test variables CO Yield/mg g−1 HCN Yield/mg g−1
Radiant Furnace Initial Oxygen %   
21 28 <3.0
17 36 1.0
Smoke Density Chamber Irradiance/kW m−2 Pilot   
50 Unpiloted 19 3.4
50 Piloted 66 1.0
25 Piloted 43 6
Steady State Tube Furnace Temperature   
650 °C (well-ventilated) 26 <3.0
825 °C (under-ventilated) 143 8.8
Controlled Atmosphere Cone Calorimeter Irradiance/kW m−2 Air Flow/L s−1 Initial Oxygen %   
50 25 21 27 3.7
18 35 7.7
16 44 12.5
50 12.5 21 24 3.6
16 35 9.6
14 33 3.9
25 25 21 24 -
18 29 -
16 29 -