May 14, 2021 · COD Vials High Range 0-1500mg/L. WTW. Dichromate reactor digestion reagents for fast, easy, safe determination of low-, mid-, and high-range C.O.D. levels in wastewater. Premeasured reagent is packaged in flat-bottom ampules that are compatible with most spectrophotometers. Reagents have a two-year shelf life.
Get Price >>