TN Lab Supply Volumetric Flask 25ml Borosilicate Glass Class A Precision ISO 1042

Heavy beaded tubing neck. Flasks feature a sharp graduation line and large white block letters. A ground glass stopper is included. This is first of its kind innovative technology only available on United glassware. We recommend the NeoReader app for scanning QR codes. 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. +/-0.03ml tolerance With #9 glass stopper Class a