Corning Pyrex 5641-10 Borosilicate Glass 10mL Volumetric Flask ±0.04mL Accuracy, Class B Flat Bottom with Standard Taper Stopper - Lab Glassware for Chemistry Experiments & Scientific Measurements (12 Pack)

These 10mL PYREX economy flasks are designed for those that do not require the precision accuracy of our Class A capacity flasks. Capacity tolerances are twice those specified for Class A volumetric ware. The graduation line is sharp and permanent; large white block letters make inscriptions easy to read. Supplied with No. 9 standard taper glass stopper. Material: borosilicate glass code 7740. Capacity: 10mL. Flask style: volumetric. Flask shape: flat bottom. Top style: standard taper stopper. Neck style: long. Flask feature: economy. Accuracy class: Class B. Tolerance: +/-0.04mL. Standard taper stopper number: No. 9. Height: 99mm. Outer diameter: 28mm. Corning #: 5641-10.