· EZ Series - Chromium Analyzer · EZ Series - COD Analyzer · EZ Series - Color Analyzer · EZ Series - Copper Analyzer
reliable data. Shop Now · EZ Online Nitrate and Nitrite Analyzer · Hach’s EZ Series online analyzers for nitrate and nitrite
field applications using drop count titration and color disc methods. Shop Now · Benchtop Alkalinity Instruments
adding a reducing reagent. The nitrite reacts in an acidic medium with the color reagent to produce a violet azo complex
Testing · Portable Testing (color discs and colorimeters) · Online Process Testing · Method · Frequently Asked Questions
reactive phosphorus) is combined with molybdate in an acidic medium to produce either a blue or yellow color. Be aware
