... :<1%(Deviation of D50 on CRM)Principle:Mie Scattering TheoryLaser source:import semi-conductor laserOperating System:Windows2000,XPConnection Port:RS232 or ... as calcium carbonate, talcum, kaolin, zirconium silicate, wollastonite, graphite, silica powder, tourmaline, mica, barite, plaster, betonite, diamond, quartz, diatomite, feldspar, calamite ...