When compared to the standard BOD test, the PeCOD® can estimate BOD concentration within a 95% confidence level.
The PeCOD® measures COD through a rapid 10-minute photoelectrochemical oxidation, allowing for the accurate monitoring of a wide range of concentrations in real-time. These COD readings can be used to reliably estimate BOD by applying a correlation coefficient. When compared to the standard BOD test, the PeCOD® can estimate BOD concentration within a 95% confidence level.
Some examples of correlation coefficients of PeCOD®/BOD that have been determined for different types of industrial wastewater are provided in the table below.
| Industry | PeCOD®/BOD Ratio |
| Beverage Company |
0.56 |
| Confectionary | 0.59 |
| Garment Industry | 0.59 |
| Packaging Company | 0.63 |
| Oil Recycling Company | 0.65 |
| Portable Sanitation | 0.68 |
| Dairy | 0.91 |
| Nut Company | 0.94 |
| Food Manufacturing | 0.98 |
| Bakery | 1.52 |
| Condensed Milk | 2.15 |