网页Hach. SwiftTest Reagent Replacement Vials - DPD Total Chlorine Reagent USEPA accepted for reporting drinking and wastewater analysis using Hach Method 8167 Method: DPD Range: 0 - 2.0 mg/L or 0 - 4.5 mg/L Sample Size: 10 mL 250 tests For use with Hach. Related Products: Dpd. Compare this item.