COD Information Page
What is Chemical Oxygen Demand?
Chemical Oxygen Demand (COD) is an indicative measurement of the amount of oxygen that can be consumed by reactions in a measured solution. It is commonly expressed as mass of oxygen consumed over volume of solution (mg/L). The measurement of COD is widely used in municipal and industrial laboratories to measure the overall organic contamination in wastewater. The contamination level is determined by measuring the equivalent amount of oxygen required to oxidize organic matter in the sample.
Health Risks
High levels of COD in water often correlate with threats to human health including toxic algae blooms, bacteria from organic waste, and seafood contamination. High COD levels affect aquatic organisms as well by causing hypoxia. Hypoxia reduces cell function, disrupts circulatory fluid balance in aquatic species, and can kill individual organisms.
Measuring COD
The products we carry to measure COD can be found HERE.
| The COD Vials Kits are designed to accurately measure the chemical oxygen demand levels in water using the USEPA-accepted Method and a mercury-free method. | |
|---|---|
 K7376 |
The K-7376 COD Vials Kit contains 98 vials which can be used to measure COD levels from 0-15,000ppm. (Mercury free) |
K7371S |
The K-7371S COD Vials Kit contains 25 vials which can be used to measure COD levels from 0-15,000ppm. (Mercury free) |
K7375 |
The K-7375 COD Vials Kit contains 98 vials which can be used to measure COD levels from 0-1,500ppm. (Not USEPA accepted) |
K7370S |
The K-7370S COD Vials Kit contains 25 vials which can be used to measure COD levels from 0-1,500ppm. (Not USEPA accepted) |
K7366 |
The K-7366 COD Vials Kit contains 150 vials which can be used to measure COD levels from 0-15,000ppm. (Mercury free) |
K7361S |
The K-7361S COD Vials Kit contains 25 vials which can be used to measure COD levels from 0-1,500ppm. (Mercury free) |
K7365 |
The K-7365 COD Vials Kit contains 150 vials which can be used to measure COD levels from 0-15,000ppm. (Contains mercury, USEPA accepted) |
K7360S |
The K-7360S COD Vials Kit contains25 vials which can be used to measure COD levels from 0-1,500ppm. (Contains mercury, USEPA-accepted) |
K7356 |
The K-7356 COD Vials Kit contains 150 vials which can be used to measure COD levels from 0-150ppm. (Mercury free) |
K7351S |
The K-7351S COD Vials Kit contains 25 vials which can be used to measure COD levels from 0-150ppm. (Mercury free) |
K7355 |
The K-7355 COD Vials Kit contains 150 vials which can be used to measure COD levels from 0-150ppm. (Contains mercury, USEPA-accepted) |
K7350S |
The K-7350S COD Vials Kit contains 25 vials which can be used to measure COD levels from 0-150ppm. (Contains mercury, USEPA-accepted) |
Contact us for help choosing the right product for your application
