Biochemical oxygen demand BOD Test Kit
Complete BOD Test Kit manufacturer and supplier. Dissolved oxygen. Biochemical oxygen demand Test kits for measuring Biological Oxygen Demand in water and wastewater for applications ranged 2 - 3000 mg/l O2.
Application
Reagents:
Manganous sulphate solution Alkali-iodine reagent
Starch indicator
0.00025 No Sodium thiosulphate solution
Technical Specification
Estimation of BOD of water:
Reagents: Manganous sulphate solution
Alkail-iodine reagent
Starch indicator 0.00025 N Sodium thiosulphate solution Procedure:
. Three vials A, B and C was taken and filled with the water sample.
. Determine the DO of A immediately by adding 1 mL of MnSO4 + 2 mL of H2 SO4.
.ToBadding1mLofMnSO4 +2mLofH2 SO4andkeep for 5 days.
.ToCadding1mLofMnSO4 +2mLofH2 SO4 and2mL of sample water and keep for 5 days.
. After 5 days determine DO of B ( blank bottle) and C (sample bottle).
Calculation:
If the values of DO of the vials A, B and C be a, b and c then
BOD (mg /L) = (b-c) x 1000 / volume of sample in mL.
Result: The BOD of the sample is __________ mg /L.