CURRENT SALE: 10% OFF 2 OR MORE BOXES! Price reflected in cart. Sale Terms & Conditions
Although mercury-free vials are not approved for EPA Methods, they may be used for non-EPA COD testing when chlorine interferrence is not a factor. Ultra-high-range reagent vials have also not approved for EPA testing methods. COD digestion vials may contain acid, mercury, and silver and must be disposed of properly.