HI93752-01 Calcium and Magnesium HR, Oxalate (Ca) and Calmagite (Mg) (100 Tests)

The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.

Range 0.0 - 15 ppm | Molybdenum Blue Method | 0.1ppm resolution

The HI 764 Checker®HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 764 Checker®HC, press the button and read the results. It’s that easy.