Underwriters Laboratories Inc. 2 showed that rate-of-rise or rate-anticipating thermal detectors spaced as little as two feet or six feet directly above a 2½-square-foot alcohol fire, after a freeburn of 30 seconds, either did not detect at all within 30 seconds or, did so between 28 and 30 seconds.
Source: wiktionary
These time intervals, commencing with the completion of the incipient time period, were then referenced on a freeburn fire growth curve generated by Lee for this type fuel array, and the associated convective heat release rate determined.
Source: wiktionary
Envirogel was only tested against two scenarios due to agent distribution system problems. Freeburns of each fire scenario and the individual component fires were also evaluated.
Source: wiktionary
In general, the scatters for all the above measurements were within those observed in freeburn crib fires.
Source: wiktionary