- Typical Client Results
- About WPS
“I learned a great deal that I will be able to apply... Thanks for a very informative, effective training session (30-Hour Complying with OSHA).”
Join our Mailing List:
What is A combustible dust
By W. Jon Wallace, CSP, MBA
Do I have combustible dust in my facility? What is a combustible dust? Due to recent combustible dust explosions, as well as OSHA’s national emphasis program on combustible dust, there is a heightened awareness and confusion concerning combustible dust hazards. The first question as part of a combustible dust evaluation is whether combustible dusts are present at your facility.
NFPA 654 (2013 Edition): "Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids" defines a combustible dust as follows: "A finely divided combustible particulate solid that presents a flash fire hazard or explosion hazard when suspended in air or the process-specific oxidizing medium over a range of concentrations." In addition, a combustible particulate solid is defined as: "Any solid material composed of distinct particles or pieces, regardless of size, shape, or chemical composition that presents a fire hazard."
Examples of combustible dust:
If you are handling and processing any of these dusts, you may have a combustible dust issue at your facility.
The following chart illustrates the types of material involved in combustible dust explosions.
Listed below are typical Industries handling combustible dust:
The first step of the combustible dust assessment is determining if you have any combustible dust present at your facility. The next step is an evaluation to determine if the dust is handled or processed in a manner that could potentially create a combustible dust hazard. If you determine combustible dust is a potential issue, a combustible dust program should be implemented based upon OSHA's national emphasis program on combustible dust: CPL 03-00-008, NFPA 654: "Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids," as well as NFPA 61: "Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities."
If you have any questions concerning this article or other safety issues, please contact W. Jon Wallace, "The Safety Guru", at 919.933.5548 or by