... of D50 on CRM) Principle: Mie Scattering Theory Laser: Import semiconductor laser Operating System: Windows XP / Windows 7 Connection Port ... non-metallic powders, such as calcium carbonate heavy, calcium carbonate light, talcum, kaolin, graphite, wollastonite, brucite, barite, mica ... and control system are accurate and reliable. Specially designed light receiver array with 90 pcs detectors, forward 80, ...