Combustible dust is defined as a
combustible 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. Although dust can be found in every
environment on earth, there are certain dusts that can cause potential harm
when there is enough accumulation and an ignition source. Materials that have
the potential to form combustible dust include metals, wood, coal, plastic,
biosolids, sugar, paper, soap, dried blood, and certain textiles. Combustible
metals include but not limited to aluminum, chromium, iron, magnesium, and
zinc.
The key factor in preventing combustible
dust is regularly inspecting areas and implementing a regular cleaning schedule
within those work areas. Additionally, the use of a principal engineering
control (dust collection system) should always be used when generating dust
specifically wood dust. Each area should
be monitored on a regular basis for dust accumulations especially on vertical
and horizontal surfaces.
For more information contact the EHS Office at
765-285-2832 or view the BSU Hazardous
Dust Control Guide and the Crystalline Silica Control Guide.