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Dust entry

Combustible dust

Finely divided solid particles that can disperse in air and ignite or explode when an ignition source is present.

Airborne form

dust

The form describes what is suspended in air at the point of exposure. A material can produce more than one form, such as dust during handling and fume during heating.

Health effects

fire injuryexplosion injuryburnsblast traumaairborne particulate exposure

Evidence

The Canadian Centre for Occupational Health and Safety defines combustible dust as finely divided solid material able to disperse in air and catch fire or explode when exposed to an ignition source. This entry describes a physical fire/explosion hazard; it is not a claim that every combustible dust causes a particular chronic respiratory disease.

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What is a combustible dust? · 1
A combustible dust is any material (finely divided solid particles) that has the ability disperse in air and catch fire and explode when exposed to an ignition source.

OSHA describes combustible dust as finely divided solid material that can disperse in air and present a fire or deflagration hazard, and lists metal, wood, plastic or rubber, biosolid, coal, organic, and textile dust categories among examples.

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Introduction · 4
Combustible dusts are fine particles that present an explosion hazard when suspended in air under certain conditions. ... Types of dusts include, but are not limited to: metal dust ... wood dust; plastic or rubber dust; biosolids; coal dust; organic dust, such as flour, sugar, paper, soap, and dried blood; and dusts from certain textiles.

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