Corning Pyrex 5640-200 Borosilicate Glass 200mL +/- 0.1mL Flat Bottom Class A Heavy Duty Volumetric Flask, with Glass Standard Taper Stopper (Pack of 6)

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Corning Pyrex 5640-200 Borosilicate Glass 200mL Features

• Capacity: 200mL; height: 214mm; outer diameter: 74mm; tolerance: +/- 0.1mL

• Made from borosilicate glass code 7740

• Flat bottom volumetric flask has a No. 13 standard taper stopper made from hollow glass - and a long neck style

• Flask provides improved lab convenience - broad selection - and precise volume measurement

• Manufactured to Class A tolerances as established by ASTM E-694 - ASTM E-542 - and ASTM E-288

About Corning Pyrex 5640-200 Borosilicate Glass 200mL

These PYREX 200mL 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. 13 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. Material: borosilicate glass code 7740. Capacity: 200mL. Flask style: volumetric. Flask shape: flat bottom. Top style: standard taper stopper. Neck style: long. Stopper style: hollow glass. Standard taper stopper number: No. 13. Flask feature: heavy duty. Accuracy class: Class A. Feature: reusable. Tolerance: +/-0.1mL. Height: 214mm. Outer diameter: 74mm. Corning #: 5640-200.