Recognized as being EPA equivalent and follows the method outlined by ?Standard Methods for the Examination of Water and Wastewater.? The COD reagents, in 3 ranges (low, medium and high), are pre-measured, ready-to-use and have a long shelf life. They are supplied 25 to a package in 16 mm vials. The COD Reactor can digest up to 25 samples simultaneously in 2 hours or less. The inexpensive AQUAfast II is highly accurate, easy-to-use and allows user calibration. Accepts 16 mm vials. The AQUAfast IV Colorimeter may also be used.

Recognized as being EPA equivalent and follows the method outlined by ?Standard Methods for the Examination of Water and Wastewater.? The COD reagents, in 3 ranges (low, medium and high), are pre-measured, ready-to-use and have a long shelf life. They are supplied 25 to a package in 16 mm vials. The COD Reactor can digest up to 25 samples simultaneously in 2 hours or less. The inexpensive AQUAfast II is highly accurate, easy-to-use and allows user calibration. Accepts 16 mm vials. The AQUAfast IV Colorimeter may also be used.