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Title: How To Keep Cool-With Fire Resistant Coveralls
Author: John G. Penrod
Source: American Gas Association 1970
Year Published: 1970
Abstract: Almost everyone connected with the natural gas industry is interested in the safety of the individual workman when he is exposed to the dangers of a flash fire from an explosive gas atmosphere. If you talk to those people that are knowledgeable concerning thermal protection, about the first question they ask is . . . protection against what temperature and for how long? In the gas industry our product, when it flashes, will reach temperatures approaching 3600 F. By photographing a number of flash fires produced under laboratory conditions and by counting frames on the film, we find that most Rash fireballs in an open bellhole persist less than 2 seconds until they collapse to a plume of flame at the point of leakage. Assuming that a workman is not injured or unconscious at the time of a flash fire, then we can further assume that he has great motivation and wilt, in fact, rapidly remove himself from the vicinity of the remaining flame.

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