DKK-TOA Corporation

Automatic total nitrogen/phosphorus/COD analyzer NPW-160

COD (UV) Measurement Flow

NPW-160
Measurement of sample water(10ml)
10-mm cell
←UV light 254 mm
←Visible light 546 mm
UV and VIS measurement
Calculation
U-V, UV, VIS
Calculation of the COD value using the conversion formula