Shop a range of Hach products for COD monitoring including COD analyzers, instruments, reagents, and more. Learn what COD is and why it's measured.

The EZ Series Online Analysers offer multiple options to monitor Chemical Oxygen Demand (COD) in water. Typical applications are wastewater and surface water. The EZ7000 Series COD Analysers are single-parameter titrators.

COD is the amount of dissolved oxygen that must be present in water to oxidize chemical organic materials. Read about COD measurement, products, reagents & more.

The Hach HQ430D Multi-Meter is an advanced BOD meter designed for water quality experts to take the guesswork out of measurements. The HQD BOD meter connects with smart Intellical electrodes that automatically recognize the testing parameter, calibration history, and method settings to minimize errors and setup time.

COD is most suitable for rapid and frequent monitoring of treatment plant efficiency and water quality. This method is more accurate than BOD (with a 5-10% relative standard deviation) and it offers a relatively short analysis time (2-hour digestion time), compared to the 5-day BOD test.

COD is most suitable for rapid and frequent monitoring of treatment plant efficiency and water quality. This method is more accurate than BOD (with a 5-10% relative standard deviation) and it offers a relatively short analysis time (2-hour digestion time), compared to the 5-day BOD test.

The Hach HQ430D Multi-Meter is an advanced BOD meter designed for water quality experts to take the guesswork out of measurements. The HQD BOD meter connects with smart Intellical electrodes that automatically recognize the testing parameter, calibration history, and method settings to minimize errors and setup time.

화학적 산소 요구량(cod)는 석유와 같은 화학적 유기물질을 산화하기 위하여 물 속에 존재해야 하는 용존 산소의 양입니다. cod는 폐수 유출물이 수용수의 산소 농도에 미치는 단기적인 영향을 측정하는 데 사용됩니다. cod와 bod 비교

The Hach DR900 handheld colorimeter is the ultimate solution for portable, rugged water testing. Designed to excel in demanding environments, this advanced instrument efficiently handles over 90 commonly tested water parameters, making it the ideal choice for professionals who need reliable results on the go.

Conduct reliable BOD tests and measurements with Hach’s range of test kits, meters, analyzers, incubators and more.