VISOCOLOR® ECO Test Nitrite

A standalone test kit for the chemical analysis of water samples that needs no additional apparatus or prior chemistry knowledge. The colour templates on the VISOCOLOR® card are matched to the colours of freshly prepared standard solutions, giving fine resolution, precision and reproducible results. Nitrite is determined as a reddish-violet azo dye over a measuring range of 0.02–0.5 mg/l NO₂⁻, with enough reagents for 120 tests. The kit includes reagents, measuring glasses, a slide comparator, a colour chart, a syringe and instructions.