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M150/160 Marple Miller Impactor
The MARPLE-MILLER IMPACTOR (MMI™) is a five-stage impactor with collection cups instead of the conventional collection plates. Originally designed for mass size distribution by chemical analysis of inhalable pharmaceutical aerosols, the MMI has also found a variety of non-pharmaceutical uses including size distribution analysis of oil mist, and soot particles from crankcase blowby of diesel engines. Cut-size diameters are 10, 5, 2.5, 1.25, and 0.625 µm. Easily removable collection cups allow direct weighing of collected particles or droplets. Solvent can be added to the collection cups for sample extraction and subsequent chemical analysis. The Model 150 is designed for 30LPM and the Model 160 is designed for 60LPM. (Model 150 is shown for purposes of illustration.)