Description
The HI93754A-25 reagent kit is designed for low range COD measurement (0–150 mg/L O₂) using the EPA-approved dichromate digestion method. During the digestion process, organic compounds in the sample are oxidized under high temperature conditions. The hexavalent chromium present in the reagent is reduced to trivalent chromium, and the change is measured colorimetrically using a compatible photometer. The intensity of the resulting color is directly proportional to the COD concentration and is displayed in mg/L (ppm) O₂, providing accurate wastewater and environmental analysis.
Each kit contains 25 pre-measured, pre-dosed vials with approximately 3 mL of reagent, minimizing handling and eliminating the need for manual reagent preparation or glassware cleaning. The vials are color-coded (red identification)and feature secure caps to prevent accidental leakage during digestion. Every box is supplied with a quality certificateand is clearly marked with the batch number and expiration date to ensure traceability and regulatory compliance. These ready-to-use reagents significantly reduce preparation time while improving safety and consistency in COD testing.
