VISOCOLOR® ECO Test Nitrate

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. It determines nitrate in graded steps up to 120 mg/l NO₃⁻ and provides enough reagents for 110 tests. Instructions are included in six languages.