Durable, machine-blown body. Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A ground glass stopper is included. Meets Class A specifications per ASTM E288. Individually serialized and certified.

• Our volumetric flasks feature QR code integration to facilitate quick and easy access to certificates of calibration, certificates of conformity, and user manuals where applicable.
• This is first of its kind innovative technology only available on United glassware.
• Simply point your smartphone to the QR code printed on the flask.
• Enter the serial number when prompted, and the app automatically takes you to the certificate screen.