For determination of free chlorine by the DPD method. For use with Hach's Chlorine Visual Test Kits.
Sample Sizes: LR: 25 mL; MR: 10 mL; HR: 5 mL.
Pack of 100 powder pillows.
Boric Acid free!
Hach Free Chlorine Powder Pillows - 100 Pack
SKU: 1407799
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