Dilutions are being missed
Missing dilutions in the BOD test is a common problem. In most cases the dilutions are well known but when the BOD changes from day to day this can be a very annoying problem, especially since it will not be known for several days whether or not the dilutions were adequate. To keep from missing dilutions several things can be attempted.
- Add additional dilutions.
- Use historical values to estimate your BOD.
- Use another test to estimate BOD such as TSS, COD, TOC, or UV Absorbance