Matthews Spray Droplet Sizing
Eyepiece Reticle with Dots ranging from 0.050mm (50µm) to 0.400mm (400µm).
£127.94 - £152.29
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For size and distribution assessments of aerosol droplets. Used with 4x objective for direct measurements of droplets groups of 50, 100, 200 and 400 microns diameter. W.H.O. and G.A. Mathews. Imperial College.
Soda Lime 1.5mm thick
Correct reading through glass