USGS-NWQL: I-3560-85: Chemical oxygen demand (COD), total, in water by titrimetric, dichromate oxidation

Summary
Analytes
Revision
Data and Sites

Official Method Name

Oxygen demand, chemical, total, 0.25N dichromate, titrimetric, dichromate oxidation

Current Revision

1985

Media

WATER

Instrumentation

Titration

Method Subcategory

Inorganic

Method Source

USGS-NWQL

Citation

Methods for the Determination of Inorganic Substances in Water and Fluvial Sediments, Techniques of Water-Resources Investigations of the United States Geological Survey, Book 5, Chapter A1 Edited by Marvin J. Fishman and Linda C. Friedman

Brief Method Summary

This method is no longer available through the USGS National Water Quality Laboratory. If using a local laboratory, refer to method report for more information.

Scope and Application

Applicable Concentration Range

Interferences

Quality Control Requirements

Sample Handling

Maximum Holding Time

Relative Cost

Unknown

Sample Preparation Methods

This method has 1 analyte associated with it.

Analyte	Detection Level	Bias	Precision	Pct False Positive	Pct False Negative	Spiking Level
COD(E-10117) COD Chemical Oxygen Demand	N/A	N/A	N/A

Precision Descriptor Notes:	Inactive method; included for informational purposes as it is approved by EPA for regulatory use but no longer used by the USGS.
Detection Level Note:

Revision	PDF/Link
1985

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USGS-NWQL: I-3560-85: Chemical oxygen demand (COD), total, in water by titrimetric, dichromate oxidation

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