March 2, 2020

How does NFPA 484 relate to 3D Printing?

Many metal powders are used as raw materials in 3D printing. These metal powders can be highly combustible, and the 3D printing process generates dust. NFPA 484 begins to outline proper handling and processing of this combustible dust and metal powders used in additive manufacturing.

March 2, 2020

How do you reduce the risk of static electricity around combustible dust?

To reduce the accumulation of static electrical charge, be sure all components of your dust collection system are properly bonded and grounded

March 2, 2020

Does NFPA 484 allow for the use of downdraft benches?

Yes, NFPA 484 permits the use of downdraft benches and environmental control booths as long as it collects less than .5 lbs of dust is collected and emptied each day, and a DHA (Dust Hazard Analysis) has been conducted.

March 2, 2020

What are Legacy Metals?

According to NFPA 484, Legacy Metals include aluminum, magnesium, niobium, tantalum, titanium, zirconium and hafnium.

March 2, 2020

What are nanometals?

Nanometals are very fine metallic particles smaller than 500 nanometers.

March 2, 2020

Which metals are combustible?

Aluminum, magnesium, titanium, zirconium, sodium, lithium and potassium have the potential to combust when in powder or dust form.

March 2, 2020

What is NFPA 484?

The NFPA 484 Standard addresses the proper handling of combustible metal dusts to reduce the risk of explosion. This standard applies to all facilities that process or finish potentially combustible metals, creating metal dust or powder.

December 16, 2019

What is Combustible Dust?

The National Fire Protection Agency (NFPA) defines combustible dust as “any finely divided solid material that is 420 microns or smaller in diameter and presents a fire or explosion hazard when dispersed and ignited in air.” Any combustible material can burn rapidly when in a finely divided form. If such a dust is suspended in […]

December 16, 2019

How do I know if my dust is combustible?

The combustibility of dust depends on a number of factors. For a quick check, look at this chart from the Occupational Safety and Health Administration (OSHA). If your dust is on that list, then you need to be concerned about combustible dust. Just how combustible your dust is, however, depends on many things you won’t find […]

December 16, 2019

What is NFPA Standard 652?

NFPA 652, Standard addresses the fundamentals of Combustible Dust to mitigate fire, flash fire, and explosion hazards. This new standard provides the basic principles and requirements for identifying and managing the fire and explosion hazards of combustible dusts and particulate solids. This standard serves a wide variety of industries including chemical, wood processing, metals, and agricultural. 

December 16, 2019

What are the components of a Dust Hazard Analysis (DHA)?

DHA is a systematic review to identify and evaluate the potential for fire, flash fire and explosion hazards associated with the presence of one or more combustible particulate solids arising from your processes or present in your facilities. There are five critical elements to a thorough Dust Hazard Analysis: Methodology and scope Material characterization Process […]

December 16, 2019

What regulations apply to combustible dusts?

The Occupational Safety and Health Administration (OSHA) enforces standards for workplace safety, and the agency has developed a list of standards that apply to dust explosions. Some of these standards apply to workplace practices, such as materials handling, while others address typical safety issues, such as emergency exits. It is a manufacturer’s responsibility to comply with […]