Product Description
Hach DPD Free Chlorine Powder Pillows are used for free chlorine residual determination by the DPD Free Chlorine method. 1000/pk free chlorine powder pillows are available in 10 ml sample size only and provide accurate free chlorine residual results from 0.02 to 2.00 mg/l.
These free chlorine reagents are USEPA accepted for reporting for drinking water analysis using Hach Method 8021.