DUST HAZARD ANALYSIS AUDIT

NFPA 652

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All facilities that generate dust, and were required to meet the September 7, 2020 deadline must now comply with the requirements of NFPA 652. SEA can help you get ready for these audits!

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  • What is NFPA 652?

    This National Fire Protection Association standard outlines the requirements for the management of fire and explosion hazards related to combustible dusts.

    Updated from its previous version, the 2019 NFPA 652 requires facilities to complete a dust hazard analysis (DHA), demonstrate progress in completing a DHA in years leading up to the deadline, and continue to review and update the DHA every five years.

    This standard is the go-to source for facility managers, inspectors, safety personnel, contractors and engineers for handling combustible dust safety in any industry.

  • What is combustible dust?

    NFPA 652 defines combustible dust as “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.”


    <Click Here for a free OSHA Combustible Dust Poster and List of potential materials>

  • What is a DHA?

    A Dust Hazard Analysis is a facility review that examines all areas where combustible dust is present. This analysis identifies hazards as related to explosions and fires. A DHA categorizes each area of the facility as Not a Hazard, Might Be a Hazard, or Deflagration Hazard. If any hazard areas are identified, the facility must define safe operating ranges, list any existing hazard management methods, and identify additional options to consider for future hazard management.

  • Who must meet this standard?

    NFPA 652 pertains to all industries that include processes that can generate combustible dust, although it specifically addresses the metal, agricultural, chemical and wood processing industries. According to OSHA, the risk of combustible dust explosions is present in a wide range of industries, including those that process food, grain, tobacco, paper, rubber, dyes, plastics, pesticides, metals, pharmaceuticals and pulp.

  • Who is qualified to perform a DHA?

    NFPA 652 states that the DHA shall be performed by a “qualified person”. The leader of the DHA should be highly knowledgeable in the hazards related to combustible dust as well as the process which is being observed.

    With over 25 years of knowledge and experience in hazard analysis and Industrial Hygiene, SEA can help you with your DHA needs.

By Derek Jennings March 31, 2025
California Tightens Lead Exposure Limits: What Employers Need to Know
By Derek Jennings February 10, 2025
Each year, as the Occupational Safety and Health Administration (OSHA) releases its list of the top 10 workplace safety violations, a pattern emerges that begs a question: Are these frequent violations a sign that employers continue to struggle with the same safety issues, or does it reflect a disposition among OSHA inspectors to focus on areas where they are trained to focus? The Persistent Issue of Repeated Findings The repetition of certain violations year after year might seem surprising, but it underscores a significant challenge in workplace safety management. The top violations tend to be those that are most visible and easiest to spot during inspections, such as fall protection and hazard communication. This consistency suggests that while awareness is high, practical implementation and adherence to safety practices lag behind. Top 10 Most Cited Health and Safety Standards of 2024 1. . Fall Protection, General Requirements: 6,307 violations For the 14th consecutive year, fall protection tops the list of OSHA's enforcement priorities. This emphasis is not arbitrary; OSHA has designated fall protection as a national emphasis area, making it a primary focus during inspections. It's often one of the easiest violations to spot without extensive investigation skills. The OSHA standard 1926.501 mandates that employers must provide fall protection systems like guardrails, safety nets, or personal fall arrest systems for workers at risk of falls of six feet or more in construction and four feet in general industry. Often, the major factor in these violations is human behavior. Many offenders might think, "No one is watching, and this will only take a moment, so it's no big deal." However, this mindset can lead to non-compliance with critical safety measures, putting worker safety at significant risk.
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