PYREX® 500 mL Class A Volumetric Flask with PTFE Stopper
Corning Life SciencesThese 500 mL Class A PYREX® volumetric flasks have machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for No. 19 PTFE color-coded keyhole stoppers. For replacement stoppers see No. 7630. The graduation line is sharp and permanent. Large white block letters make the inscription easy to read. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E- 694…