But investigators said the company also knew about dust explosions.

From an early stage, the main theory pursued was that of the dust explosion.

There is also the possibility of a dust explosion, although none are known to have occurred yet during a rescue attempt.

That, in turn, triggered a cascade of secondary dust explosions.

Ground and bond containers when transferring material to avoid dust explosion.

Dust explosions may be classified as being either "primary" or "secondary" in nature.

A methane gas and dust explosion resulted in the deaths of 195 men.

A few more droplets descended from the sky to hit the car or make little dust explosions on the road.

Much research has been carried out in Europe and elsewhere to understand how to control these dangers, but dust explosions still occur.

Therefore, the working theory from an early point was the rubber dust explosion theory.

This triggered an even bigger coal dust explosion with devastating effects.

A mere dust explosion in a silo of ancient grain: gone.

Dust explosions can have potentially fatal consequences when adequate safety measures are not in place.

It noted that the sugar industry had been aware of the risk of dust explosions since 1926.

There was a further explosion (probably a dust explosion) which blew him over.

There are four necessary conditions for a dust explosion:

Typically, normal atmospheric oxygen can be sufficient to support a dust explosion if the other necessary conditions are also present.

One report suggested that there could have been a dust explosion as fine powder used in manufacturing ignited somehow.

Other theories included a dust explosion and a build-up of methane beneath the building.

May present a dust explosion hazard at concentrations exceeding 0.7 kg/m3.

Many common materials which are known to burn can generate a dust explosion, such as coal and sawdust.

Because of this, the handling of sugars presents a risk for dust explosion.

The coal dust explosion at the Dongfeng mine destroyed its ventilation system.

Electrostatic coating can also give rise to dust explosions.

To prevent dust explosions and fires, employers must (among other things):