This color disc test kit 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 free and total chlorine test reagent. Hach Chlorine Test Kits are manufactured by Hach to ensure compliance with stringent quality control standards.
Includes: reagents, color disc, color comparator, tube and carrying case.
Tech Specs:
Range: 0.2 to 3.5 mg/L
Resolution: 0.1 mg/L
Sample size: 5 mL
Number of tests: 100 (50 free chlorine and 50 total chlorine)