HI93710-01 pH photometric – Reagents- 100 Tests

Range 0:00 to 3:50 ppm | USEPA Method 330.5 / DPD | Resolution 0.01ppm

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