Sigma cod digestion vials with screw caps
customized economical 10mL cod digestion vials for water
COD Vials High Range 0-1500mg/L. 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.
Wheaton 40ml VOA vials with open top closure-COD Vials
Vials, screw top V-Vials® with open-top cap volume 3 mL, 20-400 thread, dia...