... all can test, such as: powder, board, paper, paste, sheet, clay,etc.A & E Lab. Main Products: Atomic Absorption Spectrometer ... Refractometer, PH/DDS/TDS Meter, etc.Application:This instrument based on the principle of photoelectric effect & D65 light source (R457 ... ---Size & Weight405X325X330mm & 6.5kg Digital Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)