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COD DIGESTION APPARATUS 'U-TECH' MAKE:To determination of Chemical Oxygen Demand. It is a solid state block heated unit with provision for samples to be digested at a time in 38 mm. dia reaction vessels with 20 ml sample size ot heat at temp. of 150°C + 1°C controlled by solid state digital temp. indicator-cum controller Micro Processor Based (P.I.D.). It has provision for 15 samples and is supplied with 15 nos. glass reaction vessels and 15 nos. air condensers. Fitted with a 2 hour timer, the samples after being digested for 2 hours can be analysed using calorimeter or conventional titration method. To work on 220/230 volts AC.