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For free chlorine determination by the DPD Free Chlorine method

These free chlorine Powder Pillow reagents are USEPA accepted for reporting in drinking water and wastewater analysis using Hach Method 8021.


For best results use with a Hach colorimeter or spectrophotometer.

*This product has not been evaluated to test for chlorine and chloramines in medical applications in the United States.

2105528, Free Chlorine Reagent Pillows

SKU: 2105528
    • • Pack of 1000 powder pillows
    • • 10 mL sample size
    • • Range from: 0.02 - 2.00 mg/L Cl₂
    • • Boric Acid free!
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