Carbon Oxygen Demand Standards
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5000 ppm Chemical Oxygen Demand Standard, Reagecon
Can be used to calibrate, control, verify or validate all COD test methods.
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Thermo Scientific™ COD (Chemical Oxygen Demand) Calibration Standards for AQUAfast Colorimeters
Use these calibration standards to check your colorimeter instrument operations before measuring COD chemistries, for example in environmental and wastewater monitoring.
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Chemical Oxygen Demand (COD) @ 1000 mg/L in H2O, 0.5% H2SO4
VHG Labs offers ISO 17034 metallo-organic and aqueous inorganic certified reference materials for oil, fuel, and coolant analysis as well as a variety of certified standards for environmental, pharmaceutical, and industrial applications