Corning® Pyrex® Serialized / Certified Volumetric Flasks, Class A
By Corning
Pyrex® volumetric flasks are calibrated to Class A tolerances in accordance with ASTM E-542 and E-288. Each flask is individually serialized and supplied with a Certificate of Identification and Capacity, traceable to NIST standards. Supplied with ST glass stoppers. The graduation line is sharp and permanent and large white block letters make the inscription easy to read.