Use Thermo Scientific™ Orion™ AQUAfast Tablet Reagents with Orion™ AQUAfast colorimeters and Thermo Scientific™ Orion™ AquaMate Vis and UV-Vis spectrophotometers. These convenient, rapidly dissolving tablets can be precisely added to samples without leaving residual reagent in the packaging and are very stable for long shelf live accessibility. Tablet reagents measure alkalinity, aluminum, ammonia, boron, chloride, chlorine, chlorine dioxide, copper, DEHA, hardness, hydrazine, hydrogen peroxide, iron, manganese, nitrate, nitrite, ozone, pH, phosphate, potassium, silica, sulfate, sulfide and zinc.