Parameter Range Resolution Accuracy Wavelength Cuvette Type Method Reagent Code Low Range Chemical Oxygen Demand Low Range EPA (13 mm Vial) 0 to 150 mg/L (as O±) 1 mg/L ±5 mg/L or ±4% of reading at 25 °C, whichever is greater 420 nm 13 mm diameter Adaptation of the EPA 410.4 Approved Method for the COD Determination on Surface Waters and Wastewaters HI93754A-25 Reagents for 25 tests Chemical Oxygen Demand Low Range Mercury Free (13 mm Vial) 0 to 150 mg/L (as O±) 1 mg/L ±5 mg/L or ±4% of reading at 25 °C, whichever is greater 420 nm 13 mm diameter Dichromate Mercury Free HI93754D-25 Reagents for 25 tests Chemical Oxygen Demand Low Range ISO (13 mm Vial) 0 to 150 mg/L (as O±) 1 mg/L ±5 mg/L or ±4% of reading at 25 °C, whichever is greater 420 nm 13 mm diameter Dichromate ISO HI93754F-25 Reagents for 25 tests Medium Range Chemical Oxygen Demand Medium Range EPA (13 mm Vial) 0 to 1500 mg/L (as O±) 1 mg/L ±15 mg/L or ±3% of reading at 25 °C, whichever is greater 610 nm 13 mm diameter Adaptation of the EPA 410.4 Approved Method for the COD Determination on Surface Waters and Wastewaters HI93754B-25 Reagents for 25 tests Chemical Oxygen Demand Medium Range Mercury Free (13 mm Vial) 0 to 1500 mg/L (as O±) 1 mg/L ±15 mg/L or ±3% of reading at 25 °C, whichever is greater 610 nm 13 mm diameter Dichromate Mercury Free HI93754E-25 Reagents for 25 tests Chemical Oxygen Demand Medium Range ISO (13 mm Vial) 0 to 1000 mg/L (as O±) 1 mg/L ±15 mg/L or ±3% of reading at 25 °C, whichever is greater 610 nm 13 mm diameter Dichromate ISO HI93754G-25 Reagents for 25 tests High Range Chemical Oxygen Demand High Range EPA (13 mm Vial) 0 to 15000 mg/L (as O±) 1 mg/L ±150 mg/L or ±2% of reading at 25 °C, whichever is greater 610 nm 13 mm diameter Adaptation of the EPA 410.4 Approved Method for the COD Determination on Surface Waters and Wastewaters HI93754C-25 Reagents for 25 tests Ultra High Range Chemical Oxygen Demand Ultra High Range (13 mm Vial) 0.0 to 60.0 ppt (as O±) 0.1 ppt ±0.5 ppt ±3% of reading @ 25°C 610 nm 13 mm diameter Adaptation of the EPA 410.4 Approved Method for the COD Determination on Surface Waters and Wastewaters HI93754J-25 Reagents for 25 tests 6 reasons to choose Hanna COD reagents 1. The HI93754A-25 (low range) and HI93754B-25 (medium range) reagents are manufactured according to the formulation of the Official Method EPA 410.4. 2. The HI93754F-25 (low range) and HI93754G-25 (medium range) reagents are produced according to the formulation of the official method ISO 15705. 3. All scales start from 0 ppm: with each kit it is possible to cover even the low scale 4. All scales start from 0 ppm: very useful feature for samples with values on the border between two scales. With the larger scale it is not necessary to repeat the analysis 5. All reagents are accompanied by a certificate of analysis. 6. High resistance to chlorides: • up to 2000 ppm for Low and Medium Range Vials • up to 20000 ppm High and Ultra High Range Vials 11 COD and Vials 11.23 www.hannainst.com | Pre-dosed Reagents
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