A major change is coming to the National Fire Protection Association (NFPA) standards regarding combustible dusts. Many of you have utilized the NFPA standards in the past. The combustible dust standards are in place to provide guidance on ways to identify materials that may pose fire and explosion hazards, determine where and when these hazards might occur, identify and review safeguards needed to prevent injury to personnel and damage to equipment and property, and to track the progress for improving these safeguards.
By now most companies and people throughout the manufacturing sector have heard of Combustible Dust as it has become a widely discussed topic. As a review, combustible dust fires and explosions are caused when a combustible atmosphere of dust, or a layer of flammable solids, is introduce to an ignition source. This can be demonstrated by the fire triangle or explosion pentagon. These ignitions can be made worse if there are significant levels of dust accumulation present in surrounding areas, and hazard mitigation techniques are not properly utilized. One of the best ways to identify these dust fire and explosion hazards, as well as being the first step in putting a mitigation action plan together is a Combustible Dust Hazard Analysis (DHA). Besides being a great first step it is also a required one according to the National Fire Protection Association (NFPA) standards 652 and 61. Continue reading “Combustible Dust Hazards and Abatement Techniques for the Wood Pellet Industry”
An increasing number of facilities that handle combustible dusts have conducted a Dust Hazard Analysis (DHA). A DHA, in summary, is an evaluation of the fire, deflagration, and explosion hazards present at a facility due to the handling, generating, and otherwise production of combustible particulates. The National Fire Protection Association (NFPA) requires that all facilities handling and/or generating combustible dusts have a DHA completed by September 7, 2020 (NFPA 652 Chapter 188.8.131.52). The deadline for food and agricultural facilities to conduct a DHA is January 1, 2022 (NFPA 61 Chapter 184.108.40.206). Continue reading “DHA Revalidation. I’ve done my DHA. Am I done?”