Hach DPD Free Chlorine Reagent Powder Pillows, 10 mL, Pack of 1000, Range from 0.02–2.00 mg/L Cl₂, USEPA Accepted Method 8021, Drinking Water & Wastewater Analysis, for Use with Colorimeter, 2105528

USEPA accepted for reporting drinking water analysis using Hach Method 8021. For best results use with a Hach colorimeter or spectrophotometer.

• USEPA ACCEPTED – Approved for chlorine reporting in drinking water and wastewater analysis using Hach Method 8021.
• HIGH CAPACITY – Includes 1000 powder pillows, ensuring ample supply for frequent testing needs.
• PRECISE RANGE – Measures free chlorine concentrations from 0.02 to 2.00 mg/L Cl₂ for accurate water quality monitoring.
• COMPATIBLE WITH HACH INSTRUMENTS – Optimized for use with Hach colorimeters and spectrophotometers to ensure reliable results.
• VERSATILE APPLICATIONS – Ideal for testing groundwater, municipal water, and surface water quality.