Reagents for HI 761 Checker HC ®, 25 Tests

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

Range 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm

Range 0-999 ppb | ASTM Method D1687-92 diphenylcarbonate | Resolution 1 ppb