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.
- One of Hach's most popular test kits
- Easy to use color disc method
- Quickly and accurately measure free chlorine levels in the field or in the lab
Powder DPD also has a considerable advantage over orthotolidine, a hazardous substance sometimes used as a chlorine test reagent
*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.
*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.
The simple, low-cost color disc method is the most accurate visual test kit method.