While NFPA 652 is not a legally binding standard, OSHA looks to the NFPA standards, and NFPA 652 in particular, to establish GDC violations regarding combustible dust. The absence of a complete and up-to-date DHA presents a citation risk during an OSHA inspection.
Who does NFPA 652 apply to?
Scope: NFPA 652 serves the chemical, wood processing, metals, and agricultural industries. Combustible dust-related fires and explosions are a global problem, and in the United States alone, 50 dust-related incidents occurred between 2008 and 2012.
Is there an OSHA comprehensive combustible dust standard?
Although OSHA’s NEP on combustible dust is not an actual OSHA standard, inspectors have been encouraged to use NFPA standards to determine whether there are dust safety issues in a facility.
What NFPA 652?
NFPA introduces all-new NFPA 652, Standard on the Fundamentals of Combustible Dust to mitigate fire, flash fire, and explosion hazards. This important new Standard serves a wide variety of industries including chemical, wood processing, metals, and agricultural.
Does OSHA require a DHA?
The new standard, to be enforced by OSHA, requires a Dust Hazards Analysis (DHA) be completed on existing facilities where combustible dust is present within three years, September 2018. It also requires the completion of a DHA on new facilities.
What does combustible dust mean?
Combustible dust is defined as a solid material. composed of distinct particles or pieces, regard- less of size, shape, or chemical composition, which presents a fire or deflagration hazard when. suspended in air or some other oxidizing medium.
What is a dust hazard analysis?
A Dust Hazard Analysis (DHA), according to NFPA 652, is a formalized process for identifying and evaluating the fire, deflagration, and explosion hazards associated with dusts and particulate solids in your facility. The DHA provides recommendations to manage these hazards.
What year did OSHA establish a comprehensive dust standard?
OSHA has implemented a major enforcement initiative by developing a comprehensive National Emphasis Program (NEP) for Combustible Dust that took effect on October 18, 2007.
What is not a combustible dust?
Certain materials in their pure chemical state will not form combustible dust, including cement, gypsum, limestone, sand and salt.
Is HDPE dust combustible?
Other hazards not contributing to the classification : Special danger of slipping by leaking/spilling product. Electrostatic charges may be generated during handling. If small particle are generated during processing or handling, this product may form combustible dust concentrations in air.
What NFPA 664?
NFPA 664, Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities, offers comprehensive criteria for designing, operating, and better protecting facilities that process wood or manufacture wood products.
What NFPA 101?
Currently used in every U.S. state and adopted statewide in 43 states, NFPA 101®:Life Safety Code® (NFPA 101), addresses minimum building design, construction, operation, and maintenance requirements necessary to protect building occupants from danger caused by fire, smoke, and toxic fumes.
What NFPA 654?
NFPA 654: Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids.
What metal dusts are combustible?
Examples of combustible dust:
Metal Dust – Such as Aluminum and Magnesium. Wood Dust. Coal and Other Carbon Dusts.
Is polyester dust combustible?
Polyester resins were stored in silo for 16 h in daily operation, and the D50 of polyester resins was 1.20 mm, which can be defined as combustible dust, so the above phenomenon belonged to Zone 21.
What powders are explosive?
Powdered metals (such as aluminum, magnesium, and titanium) can form explosive suspensions in air, if finely divided. Explosive dust can arise from activities such as transporting grain, and grain silos have often been demolished violently.