HI93729-01 Fluoride LR – Reagents – 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 0:00 to 2:50 ppm | ascorbic acid method | Resolution 0.01ppm

Range 0 - 500 PCU | Platinum Cobalt method | Resolution 5 PCU