The OASIS system makes it easy to switch between dry and wet dispersion. A SUCELL mounted at the top of RODOS operates a multifaceted pump circuit for suspensions and emulsions with particles from 0.1 µm to 2,000 µm. Alternatively, the aerosol open jet well-known from RODOS is available for dry samples with particles from 0.1 µm to 4,000 µm. OASIS can be used both with the HELOS range of laser diffraction sensors and in dynamic image analysis with QICPIC.