"STEM kits"

The ammonia test kits employing the well-established Nessler reagent to determine ammonia concentrations are applicable to drinking water, clean surface water, and good-quality nitrified wastewater effluent.

CHEMetrics’ Manganese water test kits employ the periodate chemistry that measures soluble manganese compounds but does not differentiate the various valence states.

Ideal for low- to medium-range colorimetric analysis of water quality