method for the medium range determination of chemical oxygen demand (COD) ... Pre-dosed reagents for ease of use; Supplied with certificate of quality ...
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?
The low range COD digestion is read at 600 nm and is proportional to the decrease in the dichromate ion (Cr2O72-), which causes the solution to move towards a
accu-TEST standard range (20-900 mg/l) COD vials are fully consistent with Standard Methods for the Examination of Water and Wastewater 17th ed.
Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.
The orange Hexavalent chromium is reduced to a greenish trivalent chromium. The analytical range for the spectrophotometric method is 5-150ppm (measured at
Shop Hach Company COD Digestion Vials, High Range, pk/25 at Fishersci.com. For determination of high range Chemical Oxygen Demand (COD) by the Reactor ...
Jan 20, 2017 A chemical oxygen demand (COD) test is used to measure the amount of ... Medium range Camlab Water COD vials 0-1500mg/l – add 2ml of your ...
