The BMS 6 for BOD determination uses the traditional manometric technique for concentrations of up to 1000 mg/l (ppm); higher concentrations must be diluted before analysis.
The instrument houses 6 bottles each with manometer and  4 scales  for concentrations of up to 90, 250, 600 and 999 ppm BOD.
The 500ml bottle can take sample quantities of from 100 to 400 ml.
The 6-position magnetic stirrer incorporated in the base of the instrument ensures continuous stirring of the samples.