Small reagent volumes used in Hach COD vials minimize the volume of spent silver, mercury and chromium waste. Customers in the contiguous 48 United States
Hach's USEPA-approved dichromate COD Method is the most widely used chemical oxygen demand (COD) method for NPDES reporting in the world.
chemical oxygen demand determinations: COD Digestion Vials, High Range Chemical Oxygen Demand (COD): US EPA approved for wastewater analysis using Hach Method
May 26, 2021 - Screw cap 16mm test vials are used for water analysis, it can also called COD vial. There are 9ml, 10ml, 12ml, 15ml test tubes for water
COD testing is a good better indicator of organic pollutants in industrial wastewater containing cyanides and heavy metals. COD testing affords rapid
