The furniture standard in United Kingdom (BS5852) is significantly more protective than that in the U.S. or France. Escape time is significantly increased, ˃4X. Performance of French and U.S. furnishings are approximately the same with very short flashover times resulting from a small open flame ignition source.
The smoke generated in the French and U.S. furnishing, which did not include flame retardants, produced more total smoke and more acutely toxic smoke than the British furnishing as seen in the carbon monoxide (CO) and hydrogen cyanide (HCN) concentration profiles.
The more highly protected British furnishings produced less than half of the smoke produced for the French and U.S. furnishings. Both the heat and smoke production were also significantly delayed.