The following table provides an overview of typical materials used as construction materials
in API manufacturing plants (Ref.f)): these are average densities and can vary
An example table for max number of particles is shown below:
For simplification purposes 2 different categories of particles were applied:
Metal (density: 8 g/cm3) and other particles (density: 2.5 g/cm3).
For calculation purposes a sphere model was used and a base limit of 10 ppm was applied for
both ranges individually 10.