Medium range COD reagents. 0-1500mg/l The Hanna Instruments-93754B-25 is a box of 25 reagent vials for COD, medium range *This method with chromium-sulphuric acid is officially recognised by EPA for wastewater analysis. Specifications Range 0 to 1500 mg/L (ppm) Vial Label Color white Sample qty. 2.0 mL EPA Method COD - LR Range (as O2) 0 to 150 mg/L Resolution 1mg/L Accuracy ±5 mg/L ±5% of reading Pack of 25 vials Hanna Instruments-93754A-25 Replacement reagents Hanna Instruments-94754A-25 COD - MR Range (as O2) 0 to 1500 mg/L Resolution 1mg/L Accuracy ±15 mg/L ±4% of reading Pack of 25 vials Hanna Instruments-93754B-25 Replacement reagents Hanna Instruments-94754B-25 Dichromate Method COD - HR Range (as O2) 0 to 15000 mg/L Resolution 10mg/L Accuracy ±150 mg/L ±3% of reading Pack of 25 vials Hanna Instruments-93754C-25 Replacement reagents Hanna Instruments-94754C-25 Mercury-Free Method COD - LR Range (as O2) 0 to 150 mg/L Resolution 1mg/L Accuracy ±5 mg/L ±5% of reading Pack of 25 vials Hanna Instruments-93754D-25 Replacement reagents Hanna Instruments-94754D-25 COD - MR Range (as O2) 0 to 1500 mg/L Resolution 1mg/L Accuracy ±15 mg/L ±4% of reading Pack of 25 vials Hanna Instruments-93754E-25 Replacement reagents Hanna Instruments-94754E-25 ISO Method COD - LR Range (as O2) 0 to 150 mg/L Resolution 1mg/L Accuracy ±5 mg/L ±5% of reading Pack of 25 vials Hanna Instruments-93754F-25 Replacement reagents Hanna Instruments-94754F-25 COD - MR Range (as O2) 0 to 1500 mg/L Resolution 1mg/L Accuracy ±15 mg/L ±4% of reading Pack of 25 vials Hanna Instruments-93754G-25 Replacement reagents Hanna Instruments-94754G-25