Safe handling of powders, risk assessment is significantly more challenging than for liquids and gases. The source of difficulties often lies in changes of explosion properties of the handled material, which properties are highly dependent on the current state of the powders. In industrial practice, more attention is paid to the fire and explosion protection of liquids and gases than to the prevention of dust-related accidents.
More than 70% of powders handled in the industry are explosive, making them a constant hazard. Knowledge of the ignition and deflagration properties of powders is essential for the proper design and operation of protection systems.