Products Catalogue Pdf DPD Free Chlorine Reagent Powder Pillows, 5 ML, Pk/1000 Drinking Water Analysis Hach Total Hardness Test Kit, Model 5-EP for Water Treatment | Australia For total chlorine determination by the DPD Method. USEPA accepted for reporting for drinking and wastewater analysis using Hach Method 8167 For total chlorine determination by the DPD Method. USEPA accepted for reporting for drinking and wastewater analysis using Hach Method 8167. Range: 0.02 - 2.00 mg/L. Sample Size: 10 mL. Pack of 1000 powder pillows. Boric Acid free USEPA accepted for reporting drinking and wastewater analysis using Hach Method 8167., For best results use with a Hach colorimeter or spectrophotometer., Sample Size:10 mL , Range: up to 2., 00 mg/L , pk/1000 Powder Pillows