Is it possible to verify the accuracy of a COD test?

Document ID

Document ID TE239

Version

Version 6.0

Status

Status Published

Published Date

Published Date 05/02/2019
Question
Is it possible to verify the accuracy of a COD test?
Summary
Verifying the accuracy of COD tests
Answer
Use a COD standard solution at a concentration that falls within the range of the method being run. Perform the test using the standard solution as if it were a sample. If the results are close to the standard concentration, the instrument and reagents are working properly.

Hach offers several different COD standards at varying concentrations as well as mixed influent and effluent control standards that contain COD.  Visit hach.com to find standards.

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