SCISAS: Size Classifying Isokinetic Sequential Aerosol Sampler

What does SCISAS mean? The above is one of SCISAS meanings. It may have other definitions. Please refer to the end of this passage.

SCISAS: Size Classifying Isokinetic Sequential Aerosol Sampler

Definition in English: Size Classifying Isokinetic Sequential Aerosol Sampler