Fisher Sub Sieve Sizer Measuring range:0.20-100 um(micron) ... permeability method High quality,low price,fast delivery Fisher Sub Sieve SizerGeneral Description 1, Average Particle Size Analyzer (Fisher ... Sub-Sieve Sizer) is an apparatus using a gas-permeability ... Website: x-magnet.net / http://x-magnet.net/Machinery/Sub-Siere-Sizer.html