Hach DPD Free Chlorine Powder Pillows | 100/pk

Hach DPD Free Chlorine Powder Pillows are used for free chlorine determination by the DPD Free Chlorine method. They are available in 5 ml, 10 ml and 25 ml sample sizes 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.

• 5 ml powder pillows are commonly used in Hach color wheel test kits

• 10 ml powder pillows are commonly used in Hach pocket colorimeters

• 25 ml power pillows are commonly used in Hach DR890 and DR900 colorimeters.