NANOCOLOR® COD 160 Hg-free
Photometric determination of the COD without use of mercury salts
Photometric determination of decrease in chromate concentration after two hours and oxidation with potassium dichromate/sulphuric acid/silver sulphate at 148 °C without use of toxic mercury salts
Chloride contents below 2000 mg/l are eliminated by a simple filtration pretreatment step using a special cartridge and do not interfere.
The chemical oxygen demand of a water is determined by silver-catalysed oxidation with potassium dichromate/sulphuric acid at 148 °C during a two hour period.
Data and ordering information
Cat. No. 963 026
Type> tube test 0-26
Range 15 – 160 mg/l O2
Sufficient for 20 determinations
Shelf life at least 1 year at 2 – 8 °C
Sea water suitability no