What Is Combustible Dust?
At present there is no universal definition for combustible dust. The OSHA NEP defines it as “particulate solid that presents a fire or deflagration hazard when suspended in air or some other oxidizing medium over a range of concentrations, regardless of particle size or shape.”
The NFPA defines it as “any finely divided solid material that is 420 microns or smaller in diameter that presents a fire or explosion hazard when dispersed and ignited in air.”
Most solid organic materials, as well as many metals and some non-metallic inorganic materials, will burn or explode if finely divided and dispersed in sufficient concentrations.
Five basic elements are needed for an explosion:
Get unlimited access to:
Enter your credentials below to log in. Not yet a member of Food Online? Subscribe today.