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NFPA 652

Protecting people and assets through compliance with NFPA 652

The National Fire Protection Association (NFPA) 652, Standard on the Fundamentals of Combustible Dusts, provides general requirements for the management of combustible dust fire and explosion hazards and directs the user to appropriate NFPA industry or commodity-specific standards. The standard ensures that fundamental requirements are addressed consistently across industries, processes, and dust types.
The central component of NFPA 652 is a Dust Hazard Analysis (DHA), which is required if materials handled and processed have been identified as combustible and/or explosible. It consists of an assessment of materials and processes, an analysis of the hazards posed by these materials and processes and a hazard management plan.
Our senior process safety specialists are uniquely qualified to assess the hazards, evaluate the adequacy of existing controls, and to propose practical measures for ensuring safety of people, facility, and the community. This includes the identification of possible fire and explosion scenarios and the evaluation of existing or proposed hazard-mitigation systems and equipment. We are confident that our well-tried disciplined approach will empower our clients to attain the required life-safety and business continuation objectives and requirements.
We have been conducting specialist Dust Hazard Assessments (DHA) for more than three decades for our clients in the Americas, Europe, and the Asia Pacific region. Through our accredited laboratory testing facilities and a world-class team of senior process safety specialists with extensive applicable expertise, we are uniquely positioned to assist our clients with all the expert services necessary to be in full compliance with all the requirements of NFPA 652. This includes determining combustibility and explosibility hazards of materials, conducting a Dust Hazard Analysis (DHA), managing identified fire, flash fire, and explosion hazards, and establishing Safety Management Systems.

Practical approach for identifying and managing combustible dust

We provide all the services necessary for a Dust Hazard Analysis as required by NFPA 652, beginning with the identification, testing and classification of particulate solids and dusts, and concluding with a ready-to-implement safety management system. Our NFPA 652 compliance-related services include:
  • Hazard Identification
    Our experts identify potential locations and situations conducive to fire, flash-fire, and explosion hazards involving fine particulate solids and dusts.
  • Laboratory Testing
    We collect representative dust samples from appropriate locations using acceptable methodologies to preserve the properties of the sample which is then tested for appropriate and necessary ignition sensitivity and explosive properties in our accredited laboratories in accordance with applicable test standards.
  • Dust Hazard Analysis (DHA)
    DHA is required if materials handled and processed have been identified as combustible and/or as an explosion risk. DHA is a systematic review to identify and evaluate potential fire, flash fire, and explosion hazards associated with the presence of combustible particulate solid(s) in a process or facility. DHA must be conducted by one of our experts with demonstrated ability to deal with hazards related to processing and managing combustible particulate solids.
  • Dust Hazard Management
    According to NFPA 652, the owner/operator of a facility with potentially combustible dust shall be responsible for managing identified fire, flash fire, and explosion hazards. Consideration shall be given to building and equipment design, equipment design, housekeeping, ignition source control, personal protective equipment, dust control, explosion prevention / protection / Isolation, and fire protection. If the prescribed approaches of NFA 652 for the management of combustible dust hazards are found to be impractical then a documented risk assessment shall be permitted to be conducted in accordance with life safety requirements.
  • Safety Management Systems
    NFPA 652 requires that the owner/operator shall establish written management systems for operating its facility and equipment to prevent or mitigate fires, deflagrations, and explosions from combustible particulate solids. NFPA 652’s management system requirements shall apply to new and existing facilities and processes.
Learn more about the requirements and timeline for compliance with NFPA 652.

Questions and answers about our NFPA 652 services

We are uniquely positioned to help our clients be in complete, effective, and sustainable compliance with all the requirements of NFPA 652. We have collected some frequently asked questions and answers about NFPA 652 and its requirements. Please contact us for more information!
What is the intent of the new standard NFPA 652?
Its intent is to provide general requirements for the management of combustible dust fire and explosion hazards and to direct the user to appropriate NFPA industry or commodity-specific standards. Additionally, it establishes relationships and hierarchies with industry or commodity-specific standards to ensure that fundamental requirements are addressed consistently across industries, processes, and dust types.
Which tests are typically performed during the laboratory testing phase?
What is the first step towards completing a Dust Hazard Analysis?
What is the second step in the process?
What timeline is in effect for completing a DHA?
What are some important aspects of dust hazard management?
What is an alternative to the prescriptive-based design for the control of combustible-particulate hazards?