In relation to the size of the particles, we often talk about particle size or size distribution. These are tools and diagrams resulting from specific screening tests, which accurately represents the dimensional performance of the powders contained in a sample (gas exhausted from industrial process, for example). In the field of combustion, for example, it is very important to perform an analysis of the particle size.
The chemical characteristics of the powders also affect several important aspects:
- The inflammability and explosiveness of these powders. Under certain conditions, the powders should be treated and managed using certified equipment built following specific regulations (see our article on powders and explosives and looks for insights about the ATEX directive and subsequent updates).
- The toxicity of certain compounds show respect to others.