Dust Hazard Analysis

Are your new or existing processes and facilities in compliance with OSHA’s Revised Combustible Dust National Emphasis Program (NEP)?

OSHA National Emphasis Program
Combustible Dust

OSHA recently announced a Revised Combustible Dust National Emphasis Program (DIRECTIVE NUMBER: CPL 03-00-008 EFFECTIVE DATE: 01/30/2023) which is aimed at addressing the risks associated with combustible dust in various industries.

Combustible dust poses significant hazards, and OSHA has recognized the importance of proactive measures to mitigate these dangers. The NEP outlines inspection procedures to target facilities where combustible dust hazards are prevalent and stresses the importance of a Dust Hazard Analysis.

At IFO Group, our Dust Hazard Analysis (DHA) services become even more crucial in this context.  By conducting a thorough DHA, we not only ensure compliance with OSHA’s regulations but also help you create a safer work environment for your employees.

What is a Dust Hazard Analysis (DHA)?

A Dust Hazard Analysis (DHA) is a “systematic review to identify and evaluate the potential fire, flash fire, or explosion hazards associated with the presence of one or more combustible particulate solids in a process or facility”.  -NFPA 652 (2019) 3.3.18

This evaluation involves considering the material’s combustibility or explosibility, which can be determined through historical data or laboratory analysis.
The DHA covers various aspects of the process including combustible dust transport, fugitive dust generation, the potential for deflagration propagation, oxidizing atmospheres, credible ignition sources, and mechanisms for dust suspension.

IFO Group offers process evaluation, including potential ignition sources, and will coordinate analytical testing to determine if the dust in your facility is combustible before offering management strategies.

Types of combustible dust include:

How Do DHA Requirements Affect You?

 IFO Group provides unbiased and pragmatic advice, ensuring that recommendations are based on the best interests of your organization and not influenced by external factors.

Did you know that NFPA 652 requires an existing DHA be reviewed and updated every five years?

Below are the key steps involved in the DHA process to help you better understand its importance and execution.

The first step in conducting a DHA is to assess whether combustible dust is present in your facility.  This involves identifying materials that, when finely divided, could form a combustible dust cloud in the right conditions.  If such materials are present, it is crucial to proceed with a DHA.

A successful DHA requires a multidisciplinary team. This team typically includes:

  • Combustible Dust Expert: Someone with expertise in combustible dust properties, hazards and mitigation measures.
  • Process Expert: A professional knowledgeable about the specific processes within your facility.
  • Others as Needed: Depending on the complexity of your facility, you may need additional experts, such as engineers, safety specialists, or equipment operators.

To conduct an effective DHA, you must identify and understand the relevant standards and regulations in your industry. Common references include NFPA 652: Standard on Fundamentals of Combustible Dust, along with other industry-specific codes and guidelines.

With the team assembled and standards identified, it’s time to conduct the DHA. This involves a systematic examination of your facility to identify potential dust hazards, assess their severity, and determine appropriate mitigation measures. The goal is to identify potential sources of dust ignition and assess their risk levels.

Compare your facility’s processes and operations against the applicable requirements and standards. Ensure that your operations are in compliance and that any deficiencies or discrepancies are identified during this step

Based on the findings of the DHA, your team should formulate recommendations for mitigating identified hazards. These recommendations may include process changes, engineering controls, or safety measures to reduce or eliminate the risk of combustible dust incidents.

Thorough documentation is crucial in the DHA process. Document all aspects of the analysis, including the assessment of hazards, team meetings, recommendations, and any actions taken.t

Once recommendations are finalized, it’s essential to implement them promptly. Ensure that the necessary changes are made to mitigate dust-related hazards effectively.

Conducting regular DHAs and staying vigilant about combustible dust management is an ongoing commitment to ensuring a safer and more secure work environment.

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