Helping You With NFPA 652/654

The initial issue of NFPA 652, Standard on the Fundamentals of Combustible Dust, was issued in September 2015.  Are you on track with the compliance deadline of September 2018?

The standard provides the basic principles of and requirements for identifying and managing the fire and explosion hazards of combustible dusts and particulate solids.  Of notable interest is Chapter 7 which introduces the Dust Hazard Analysis (DHA). The DHA is different from other forms of risk assessments such as a Process Hazard Analysis (PHA) and must be completed by September 2018.  Also, the new standard does not allow the absence of previous incidents as a basis for deeming a particulate to not be combustible or explosible.

PROCESS can provide clients with a review of their existing combustible dust handling systems to develop a plan for bringing them into compliance with the NFPA 652/654 standards.  Such services often include:

  • Site Visit to each facility to review the existing unit operations, gather technical data, and meet with operations personnel.
  • Evaluation Basis Preparation and Dust Hazards Analysis (DHA)
    • Detail the basis of design/evaluation for the equipment/system handling the combustible dusts
    • Determine if there is sufficient information to confirm that the material being handled is a combustible dust and if
    • additional material testing is required (flammability, flow, constituent concentrations, etc.)
    • Qualitatively define the degree of hazard associated with the specific dust at the facility based on physical property data, equipment design, and system operation.
    • Identification of Equipment Upgrade Requirementswith a list of design, physical installation, and operational modifications required to meet the new/updated standards.
    • Capital Cost Estimate for proposed modifications for planning purposes