Reference
Method
Test
Reagent #
Reagent Name
EPA
Colorimetric, Automated; Manual
Chemical Oxygen Demand
6.4
Stock Potassium Acid Phthalate
ASTM
Micro COD by Sealed Digestion and Spectrometry
Chemical Oxygen Demand
22.2
Potassium Acid Phthalate Solution, Standard (1 mL = 1 mg/L)
ASTM
Macro COD by Reflux Digestion and Titration
Chemical Oxygen Demand
14.5
Potassium Acid Phthalate Solution, Standard (1 mL = 1 mg COD)