The fire toxicity of polyurethane foams

Fire Science Reviews

Table 10 LC₅₀ values for well-ventilated flaming combustion (Neviaser & Gann 2004)

Material	Reference	Material-LC₅₀(30 min + 14 day post)/g m⁻³
Flexible Polyurethane Foam
NFR FPU #12	Levin et al 1983a	40.0
FR FPU #11	Levin et al 1983a	40.0
No details provided	Babrauskas et al 1991b	52.0
Melamine type foam	Babrauskas et al 1991b	12.5
Melamine type foam with vinyl fabric	Babrauskas et al 1991b	26.0
FR FPU #14	Levin et al 1983a	27.8
FR foam- 22.3 kg m⁻³	Braun et al 1990	26.0
FR GM-23	Farrar et al 1979	34.5
FR GM-27	Farrar et al 1979	33.1
NFR FPU #13	Levin et al 1986	40.0
NFR foam 22.3 kg/m⁻³	Braun et al 1990	40.0
NFR GM-21	Levin et al 1983b	38.0
NFR GM-21	Levin et al 1983b	49.5
NFR GM-21	Levin et al 1983b	40.0
NFR GM-21	Farrar et al 1979	43.2
NFR GM-25	Farrar et al 1979	37.5
NFR Foam	Farrar & Galster 1980	43.2
NFR Upholstered Chairs with FPUR, cover fabric and steel frame. Foam density: 25 kg m⁻³	Barbrauskas et al. 1988	35.0
Rigid Polyurethane Foam
NFR Foam, 25 mm thick, 96 kg m⁻³	Babrauskas et al 1991a	11.0
FR GM-31	Farrar et al 1979	14.2
No details provided	Babrauskas et al 1991b	22.0
NFR GM-30	Levin et al 1983b	38.4
NFR GM-30	Levin et al 1983b	13.3
NFR GM-30	Levin et al 1983b	11.3
NFR isocyanurate, GM-41	Farrar et al 1979	11.4
NFR isocyanurate, GM-43	Farrar et al 1979	5.8
NFR GM-29	Farrar et al 1979	11.2
NFR GM-35	Farrar et al 1979	12.1
NFR GM-37	Farrar et al 1979	10.9
NFR GM-39, sprayed	Farrar et al 1979	16.6