Simple determination of the biochemical oxygen demand after 5 days (BOD5) of undiluted samples without using a control in accordance with DIN EN 1899-2-H52! The oxygen enriched, undiluted sample is incubated in test tubes for 5 days at 20 ± 1°C in the dark. Determination of the dissolved oxygen after 5 days is based on the Winkler procedure, DIN EN 25813-G21 Reaction basis: DIN method: the determination of the BOD5 is carried out with the so-called dilution principle. The oxygen concentration is determined immediately after preparation of the sample and again after a five-day incubation in Winkler-flasks. Reaction basis analogous to DIN EN 1899-1-H51 and DIN EN 25813-G21.
- Reference Code: 985822
- Type: 2 - 3000 mg/L O2
- Sufficient for: 25 - 50 determinations
- Shelf life: at least 2 years
- Sea water suitability: yes