Under what conditions can halon be expected to degrade into

Under what conditions can halon be expected to degrade into toxic compounds?

A. At temperatures greater than 500° F

B. At temperatures greater than 900° F and concentrations greater than 10%

C. At temperatures greater than 900° F

D. At temperatures greater than 500° F and concentrations greater than 7%

Solution

B. If halon is deployed in concentrations of greater than 10% and in temperatures of 900° F or more, it degrades into hydrogen fluoride, hydrogen bromide, and bromine. This toxic brew can be deadly. Answers A, C, and D are incorrect because concentrations must be 10% or greater and temperatures must reach 900° F