If you want to modify a current Pick&Ship order, please contact our customer service at 800-227-4224. Add to Cart. Add to Quote. Print PDF Page. For high range, mercury-free Chemical Oxygen Demand (COD) determinations. COD2 Digestion Vials, Mercury-Free Formulation. Method: Reactor Digestion. Range: 20-1500 mg/L COD. Pack of 25 vials.
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