16mm cod reagent vials with screw caps for measuring water quality
Influence of salinity on COD measurements in coastal water
interface. The vials were fully filled with water, sealed with gas-tight screw-caps, and immediately kept in an adiabatic box with ice until further analysis. Before analysis, all samples were shaken in a sealed condition. 2.2. Measurements and methods above, and
Tubes and Vials | Fisher Scientific
Tubes and vials are supplied in a range of heights, diameters, wall thicknesses, bottom shapes (round or flat), rim and closure styles in ...