TM18-02 Validation of high-temperature catalytic oxidation carbon analyzers for analysis of organic carbon in water samples

This memorandum provides method validation data for determination of dissolved organic carbon in filtered water samples and total organic carbon in unfiltered water samples using new high temperature catalytic oxidation carbon analyzers. The validation data support a change in method, new lab codes, and method codes for dissolved organic carbon. The instrumentation for total organic carbon is also updated, but no changes in coding are necessary. Results from a paired sample study are provided to allow data users the ability to compare results from the new instruments with historical results. The new instruments for total and dissolved organic carbon analyses and analyte information for dissolved organic carbon were implemented October 1, 2017.