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printech, December, 2001
Re: C.O.D. (2)


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From: Gary Jones (gjonesprinting@aol.com )
Date: Tue, 4 Dec 2001 14:02:14


There are several COD test recognized by EPA and they are as follows: Name of Chemical or Method Method Number EPA Report or other source
Chemical Oxygen Demand - Colorimetric 0410.4 600/4-79-020
Chemical Oxygen Demand - Semi-Automated Colorime 0410.4 600/R-93-100
Chemical Oxygen Demand - Titrimetric, High Level 0410.3 600/4-79-020
Chemical Oxygen Demand - Titrimetric, Low Level 0410.2 600/4-79-020
Chemical Oxygen Demand - Titrimetric, Mid-Level 0410.1 600/4-79-020
Chemical Oxygen Demand (COD) ESTUARINE 430/9-86-004


More information on how to obtain these methods can be found at http://www.epa.gov/epahome/index/sources.htm

 Since the COD test will detect both organic as well as inorganic chemicals, it may not be the best test to determine how much solvent is in a given waste. You may have to use more definitive techniques such as HPLC or purge/trap GC with a mass spec for structural identification.



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