Reagents for HI 723 Checker HC ®, 25 Tests

Range 0:00 to 3:00 ppm NH3-N | Nessler Method | 0.01ppm resolution

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.

Reagents for HI 755 Checker HC ®, 25 Tests

Range 0:00 to 7:00 g / L | Photometric Method | Resolution 0.01g / L