HI93732-01 Dissolved Oxygen – Reagents – 100 Tests

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

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 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution

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