Chemical Oxygen Demand (COD) Vials

No Difference

CHEMetrics® COD Vials can be used directly with any Hach® factory-programmed instrument calibrations, at savings of up to 30%! See our Performance Data Report showing CHEMetrics COD Vial performance in Hach instrumentation.

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Click here for technical information on the CHEMetrics® COD reagent vial method.

COD Reagent Vials

Kit Cat. No. No. Tests Range (ppm) USEPA-accepted Hach Equivalent
K-7350S 25 0 - 150 Yes 21258-25
K-7360S 25 0 - 1,500 Yes 21259-25
K-7370S 25 0 - 15,000 No 24159-25
K-7355 150 0 - 150 Yes 21258-15
K-7365 150 0 - 1,500 Yes 21259-15
K-7375 98* 0- 15,000 No 24159-15

Mercury-free COD Reagent Vials

Kit Cat. No. No. Tests Range (ppm) USEPA-accepted Hach Equivalent
K-7351S 25 0 - 150 No 25650-25
K-7361S 25 0 - 1,500 No 25651-25
K-7371S 25 0 - 15,000 No 28343-25
K-7356 150 0 - 150 No N/A
K-7366 150 0 - 1,500 No 25651-15
K-7376 98 0- 15,000 No N/A

Note: All kits contain identical no. of tests to Hach equivalent with exception of K-7375*, where 24159-15 contains 150 tests.


* Contains mercury.  Dispose according to county, national or EU laws.

† No endorsement by Hach Company is implied or intended.


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