For determination of the chemical oxygen demand (ST-
CSB). The AQUALYTIC
® photometer
COD VARIO is suitable for waste-water analysis due to its 3 measuring ranges. The unit ensures operational safety and comfort.
- User-friendly keypad.
- Suppression of chloride interference up to 1000 mg / l (LR and MR) and up to 10000 mg / l (HR).
- Waterproof as defined in IP68, 1 h at 0.1 m.
The waste-water parameter CSB:The chemical oxygen demand, ST-
COD-value (ST = small scale sealed tube), of a sample is determined by the dichromate method. The result is a reference value for the theoretical oxygen demand, that is the amount of oxygen consumed which is needed in a total chemical oxidation of the organic constituents present in the water.
Setup MD 200 COD VARIO:The
COD setup
COD VARIO allows for precise water analyses with min. effort. After adding 2 ml of the sample to an AQUALYTIC
® COD VARIO tube test, the test is heated to 150 °C in a reactor for 2 h, cooled down and measured in a photometer afterwards.
Items supplied with set-up:Unit in plastic case, 4 batteries (AA), adapter for round vials Ø 16 mm, 2 sets of tube tests 0 to 150 mg / l, 0 to 1500 mg / l, thermoreactor AL125, vial stand, 2 syringes 1 and 2 ml, manual, warranty and certificate (COC).