Corning® 5640-2 PYREX® 2mL Class A Volumetric Flask with Glass [ST] Stopper

These PYREX® 2mL test tube shaped volumetric flasks provide improved lab convenience - broad selection - and precise volume measurement. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 8 standard taper glass stoppers. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E-694 for volumetric ware - ASTM E-542 for calibration of volumetric ware - and ASTM E-288 for volumetric flasks. This is the suggested replacement for Corning #: 5644-2. Material: borosilicate glass code 7740. Capacity: 2mL. Flask style: volumetric. Flask shape: round bottom. Top style: standard taper stopper. Neck style: long. Stopper style: hollow glass. Standard taper stopper number: No. 8. Flask feature: heavy duty. Accuracy class: Class A. Reuseable. Tolerance: +/-0.02mL. Height: 114mm. Outer diameter: 9mm. Per Each; 12 Per Case. Corning® #: 5640-2.

These PYREX® 2mL test tube shaped volumetric flasks provide improved lab convenience - broad selection - and precise volume measurement. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for No. 8 standard taper glass stoppers. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. These Class A volumetric flasks have been manufactured to Class A tolerances as established by ASTM E-694 for volumetric ware - ASTM E-542 for calibration of volumetric ware - and ASTM E-288 for volumetric flasks. This is the suggested replacement for Corning #: 5644-2. Material: borosilicate glass code 7740. Capacity: 2mL. Flask style: volumetric. Flask shape: round bottom. Top style: standard taper stopper. Neck style: long. Stopper style: hollow glass. Standard taper stopper number: No. 8. Flask feature: heavy duty. Accuracy class: Class A. Reuseable. Tolerance: +/-0.02mL. Height: 114mm. Outer diameter: 9mm. Per Each; 12 Per Case. Corning® #: 5640-2.