"Dust" collection "Dust" collection
Such systems are usually called dust collection systems even where the fibers and flyings they collect are too large to be classified as "combustible dust." The size of dust particles must be 420 microns or less for the material to meet the definition of "combustible dust." systems are usually or frequently used in areas where fibers or flyings are produced fibers are produced
For example, textile operations are likely to produce fibers, and woodworking facilities usually produce some flyings and some dust.. If these systems are designed and operated properly operated properly
This may also include and require other cleaning activities., ignitible concentrations of fibers and flyings may be prevented from accumulating and the areas need not be classified.

NOTE: This is an unformatted excerpt from our online fire protection training library.