The Volumetric Flask Class A with stopper meets the ASTM E-288 Class A Specifications & USP Standards for volumetric glassware. It features machine-blown bodies, heavy-beaded heavy-tubing neck, and a tooled ST stopper. The graduation line is sharp and permanent with white, block-letters allowing the labeling to be easily read. Also features a large marking square.
Capacity: 250 mL
Tolerance: ± 0.12 mL
ST Stopper No: 16
Approx. O.D. x Height: 78 x 239 mm