Reagents for HI 715 Checker HC ®, 25 Tests

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

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