For easy and simple on site testing of COD (Chemical Oxygen Demand), we have a specially designed ready to use COD Vials. Our COD Vials is based on digest closed micro reflux COD measurement according to Standard Method (ISO 15705:2002) and also helps meet USEPA standards. It makes the process of COD Testing easier and safer than traditional open reflux titrimetric method. These vials are of standard size 16MM that are compactible for testing COD in an Satndard COD Meter. Features : Standard Vial Size (16MM) Complies to ISO and EPA Standards Ready to use, Easy and Accurate. Based on closed micro reflux measurement Available in Wide Range (Upto 15000 mg/l)