The 2-Minute Rule for chemical oxygen demand test
Prepare the reagent blank by eradicating the COD vial cap and pipetting deionized h2o rather then sample into the vial. Amongst 95-a hundred% of all organic and natural material could be oxidized by dichromate. At the time dichromate oxidizes a substance it's transformed to some trivalent type of chromium, and that is a uninteresting inexperience