YSI DPD Chlorine Free Powder Pack Reagent Volume:5 mL Bladders and tube options are

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YSI DPD Chlorine Free Powder Pack Reagent Volume:5 mL Bladders and tube options areYSI DPD Chlorine Free powder pack reagent for colorimetric free chlorine testing. Choose the sample volume that matches your instrument and expected range, and the pack size (100 or 1000) that matches your test volume. 10 mL: 0. 022. 00 mg L Cl2 on YSI pHotoFlex and 900 (or 0. 18. 0 mg L using two packs on the 900 only) 25 mL: 0. 55. 0 mg L Cl2, used with pHotoFlex 5 mL: 03. 5 mg L Cl2, for other manufacturers' instruments only Each pack contains pre