Advantec COD150.15N COD vials, w/OUT mercury not accepted by EPA-Range 0-150 ppm, 300/CS. Unit Price: $253.91. Price: $253.91. Colombia Analytical Instruments COD1500.300NOHG COD Vials, no added mercury sulfate, High Range: 0-1500 PPM, 300/CS. Unit Price: $585.60.