In order to make a correct risk analysis / assessment or explosion protection, it is important that the explosion properties of the substance (raw materials) are known. It often happens that these properties of the substance are not known or that these values are not entered on the Safety Data Sheets. This will NOT say that the substance is not or cannot be explosive.
About 75 percent of all powdered products can give an explosive atmosphere under ideal conditions. Process conditions have a major influence on the explosion properties of a substance. This includes humidity, particle size, and temperature