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The colorimeter or spectrophotometer is the device that is going to read the absorbance of the samples after digestion in order to correlate it to the COD
Jan 16, 2013 1:30 Biochemical Oxygen Demand (BOD) Presentation. Chemical Oxygen Demand (COD) ... Flush outside of acid bottles with water before opening.
The EPA does not allow a modification of the reagents used for reporting purposes. You must use all specified reagents in the COD vial. There are further
Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the.
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Sep 15, 2019 Affiliations. 1 School of Environment and Energy, South China University of Technology, Guangzhou, 510006, PR China.
A COD test typically involves digestion of a water sample in a sealed vial with potassium dichromate and sulfuric acid at 150oC for 2 hours. Why test for COD?
BOD (biochemical oxygen demand); COD (chemical oxygen demand) Most pre-prepared COD vial vendors will have a return policy for used COD vials so that ...
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