Teledyne 6750 - Total Organic Carbon analyzers - Manual (Page 90)

Appendix Model 6750
Teledyne Analytical Instruments 78
Since COD & BOD analysis may vary with seasonal influences or
other particular conditions, correlations for those conditions would be
used at those times.
After obtaining a representative amount of TOC/COD/BOD data,
the operator enters those factors into the analyzer computer. Thereafter,
all three parameters (TOC,COD,BOD) are continuously displayed.
Updates to these correlations may be made at any time. Consult the
factory for particular user applications.