Flasks, Volumetric Flask, Class A, Certified and Serialized, Pyrex® Glass, Corning®

Class A Pyrex Volumetric Flasks with Stoppers
Calibrated to Class A tolerances in accordance with ASTM E-542 and E-288. Each flask is individually serialized. The graduation line is sharp and permanent; large white block letters make the inscription easy to read. Supplied with a standard taper stopper. Flasks have a flat bottom, Long neck, and hollow glass Pyrex stopper.