Thermo Scientific CODS01 - 1000 ppm COD calibration standard, 475mL
COD (Chemical Oxygen Demand) Calibration Standards are for use with Orion™ AQUAfast Colorimeters such as AQ4000 Advanced Colorimeter and Orion AQUAfast II AQ2040 Colorimeter. COD Chemistries can be measured by these colorimeters and ideal for environmental and wastewater monitoring. The calibration standards are used to check operations prior to using the instruments.