I've just had a terrible thought about my 20g of All Bran dust !!!
I think I need to dispose of it safety after Googling the following
Dust Explosion Hazards.
I am at my wits end and have decided that Nuclear Containment is the only answer
2. Dust explosion hazards
2.1 A dust cloud of any combustible material will explode where:
- the concentration of dust in air falls within the explosion limits; and
- a source of ignition of the required energy is present.
Containment is not always required for people to be injured and property damaged.
Substances capable of explosion
2.2 Examples of explosible dusts in the food industries include materials such as: flour, custard powder, instant coffee, sugar, dried milk, potato powder and soup powder.
Powdered All Bran
2.3 If a solid substance is finely ground it may ignite more readily or at a lower energy. If any combustible substance is mixed or suspended in air at the correct concentrations and contained in a vessel or building when ignition occurs, then a violent explosion can result. If it is uncontained then a fireball may occur. The typical concentration ranges that can give rise to an explosion are low (75- >1000 g/m3 of air). As a guide, at these lower concentrations it is difficult for an observer to distinguish solid shapes at distances of 60cm or less.
Explosions can occur (and may propagate) within a range of concentrations between values known as the lower and upper explosion limits.
2.4 Ignition energies vary with different substances and for similar substances with differing moisture content and particle size, but may be as low as the static discharge experienced when taking off a synthetic fibre jumper, or as high as that from a ‘fixed flame’ such as a gas fired boiler.
2.5 Common processes generating explosible dusts in the food industry include flour and provender milling, sugar grinding,
All Bran Grinding, spray drying of milk and instant coffee and conveyance/storage of whole grains and finely divided materials.
