The open reflux method (B) is suitable for a wide range of wastes where a large sample size is preferred. The closed reflux methods (C and D) are more
Vials are packaged in 25-, 100- and 150-count boxes to meet your testing frequency. First time buyers, receive a 25% discount on your first order of COD reagent
Hach TNTplus COD vial tests are available in multiple ranges. TNT822 provides a result in the High Range of 20 - 1500 mg/L COD and is often used for Chemical
If using High Range Plus. COD digestion reagent vials, multiply the result by. 10. For the most accurate results with samples near. 1500 or 15,000 mg/L COD,.
A COD test typically involves digestion of a water sample in a sealed vial with potassium dichromate and sulfuric acid at 150oC for 2 hours. Why test for COD?
The low range COD digestion is read at 600 nm and is proportional to the decrease in the dichromate ion (Cr2O72-), which causes the solution to move towards a
For determination of high range Chemical Oxygen Demand (COD) by the Reactor Digestion method.Range: 20 -1500 mg/L COD. Pack of 150 vials
Hach 2125825 COD Digestion Vials, Low Range, (Pack of 25): Amazon.com: Chemical Oxygen Demand (COD): US EPA approved for wastewater analysis using Hach ...
