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One of Hach’s most popular test kits, it uses powder DPD reagent that reacts with chlorine more quickly than tablet-form DPD, giving more accurate results. Powder DPD also has a considerable advantage over orthotolidine, a hazardous substance sometimes used as a chlorine test reagent. The simple, low-cost color disc method is the most accurate visual test kit method.
*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
| Case Style | B |
| Footnote | *mg/L unless otherwise noted, ppb = µg/L, ppm = mg/L.; gpg = grains per gallon; 1 gpg = 17.1 mg/L or 17.1 ppm. |
| Method Name | Color disc/DPD |
| Model | CN-66F |
| Model | CN-66F |
| Number of tests | 100 |
| Parameter | Chlorine Free |
| Parameter | Chlorine, low range – as free Cl2 |
| Platform | Color Disc |
| Range | Single Range |
| Range | 0 – 3.4 mg/L Cl₂ |
| Smallest Increment | 0.2 |
| Standard Range | 0 – 3.4 mg/L Cl₂ |
| What’s included? | Includes one reagent, color discs, tube, color comparator box, instruction sheet, and carrying case. |
