KI-Discus Principles of Operation

A fine mist of potassium iodide droplets, produced by a spinning disk, is used as a challenge aerosol to measure the containment of a cabinet or fume cupboard. Centripetal collectors sample the air outside or inside the cabinet - depending on the nature of the test. The collectors deposit any potassium iodide particles that are in the sampled air on to filter membranes. At the end of the sampling period the filter membranes are placed into a solution of palladium chloride whereupon the potassium iodide "develops" to form clearly visible and easily identified grey/brown dots.

For more information on KI-Discus Principles of Operation talk to Monmouth Scientific Limited