Determination of Biochemical Oxygen Demand (BOD5)

3. Place the samples and the 2 dilution water blanks in a 20 ( 1(C incubator for 5 days. Fill water seals with dilution water and cap to reduce evaporation from seals. Check daily, add water to seals if necessary. Due to the 5 day testing period, certain samples require that set-ups and run-outs of results be performed by different individuals. 4. ................
................