Activated carbon (ball-shaped)

Given sample use to fit inside of a 500ml grinding bowl.

After 3 minutes of dry grinding, sample has been ground to fine powder. No particles > 100µm have been found by optical microscopy afterwards.

Sample did not start sticking after 3 minutes of grinding. For this, we have ground the same kind of sample for totally 10 minutes. Still sample did not start sticking. For this, even longer dry grinding times are possible.

Fineness did not change significantly compared to result 1 (after 3 minutes of grinding).

Fineness has been determined my optical microscopy.

A bit of fine dust uses to escape by the feeding funnel. By using the accessories for grinding large quantities, desired amount of 150g of sample can be ground in one batch and dust exportation will be minimized.

A bit of fine dust uses to escape by the feeding funnel. By using the accessories for grinding large quantities, desired amount of 150g of sample can be ground in one batch and dust exportation will be minimized.