... SpecificationsWhiteness meter except solution or liquid samples, others all can test, such as: powder, board, paper, paste, sheet, clay, ... etc.A & E Lab. Main Products: Atomic Absorption Spectrometer (AAS), Fluorescence Spectrophotometer ... source (R457) and with 0/d or d/0 as a illumination condition. Meanwhile, except solution or liquid samples, this ...