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A fire is a self-sustaining, exothermic oxidation reaction that emits heat and light. When a fire is accelerated, it can produce more heat, consume the reactants more quickly, burn at a higher temperature, and increase the spread of the fire. An accelerated fire is said to have a higher "heat release rate," meaning it burns more quickly.
An ignitable liquid is a liquid that will readily ignite when exposed to an ignition source, while a fire accelerant is a material that is used to increase the rate of combustion for materials that do not readily burn. [2] Ignitable liquids are not always fire accelerants, they may just be present at the scene under normal circumstances.
Explosive effect mostly contained by packaging. A fire must not cause a instantaneous mass explosion. Division 1.5: Very insensitive goods and substances, with a mass explosion hazard (explosive considered so insensitive that initiation or transition from burning to detonation very unlikely under normal transport conditions).
1.3 Mass fire, minor blast or fragment hazard. Propellants and many pyrotechnic items fall into this category. If one item in a package or stack initiates, it will usually propagate to the other items, creating a mass fire. 1.4 Moderate fire, no blast or fragment. HC/D 1.4 items are listed in the table as explosives with no significant hazard.
In a flash fire, the flame spreads at subsonic velocity, so the overpressure damage is usually negligible and the bulk of the damage comes from the thermal radiation and secondary fires. When inhaled, the heated air resulting from a flash fire can cause serious damage to the tissue of the lungs, possibly leading to death by asphyxiation. Flash ...
A high risk for dangerous fire weather conditions is present for most of Los Angeles and Ventura Counties, the National Weather Service said, adding that "widespread damaging winds and low ...
The simplest theory to predict the behaviour of detonations in gases is known as the Chapman–Jouguet (CJ) condition, developed around the turn of the 20th century. This theory, described by a relatively simple set of algebraic equations, models the detonation as a propagating shock wave accompanied by exothermic heat release.
The single state designation would likely result in more areas falling under a fire hazard designation, not fewer, he said. "What [SB] 610 looks to do is really shift how we adopt the map ...