Collection: Volumetric Flasks

Volumetric flasks are calibrated to contain (TC) a single volume at the ring mark, which makes them the vessel for preparing standard solutions and exact dilutions. Every flask here is listed by manufacturer part number.

Class A flasks meet ASTM E288 Class A tolerances and are the choice for analytical and reference work; Class B flasks carry roughly twice the tolerance and suit routine preparation and teaching. Borosilicate glass flasks come with ground-glass stoppers or snap caps, in clear or amber for light-sensitive solutions; wide-mouth Class A flasks make it easier to add solids; polypropylene screw-cap flasks are the break-resistant option for field and student use.

Sizes run from 1 mL to 2000 mL. Erlenmeyer, filtering and round-bottom flasks are in Lab Flasks; graduated cylinders and beakers are under Glassware.