Corning Pyrex 5640-25 25ml Class A Heavy Duty Volumetric Flat Bottom Flask withCorning Pyrex Glass Standard Taper Stopper (Pack of 6) Reviews
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Corning Pyrex 5640-25 25ml Class A Heavy Duty Volumetric Flat Bottom Flask withCorning Pyrex Glass Standard Taper Stopper (Pack of 6) Feature
- Capacity: 25mL; height: 121mm; outer diameter: 40mm; tolerance: +/- 0.03mL
- Made from borosilicate glass code 7740
- Flat bottom volumetric flask has a No. 9 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
These PYREX 25mL 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. 9 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: 25mL. Flask style: volumetric. Flask shape: flat bottom. Top style: standard taper stopper. Neck style: long. Stopper style: hollow glass. Standard taper stopper number: No. 9. Flask feature: heavy duty. Accuracy class: Class A. Feature: reusable. Tolerance: +/-0.03mL. Height: 121mm. Outer diameter: 40mm. Corning #: 5640-25.
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Apr 25, 2011 17:58:09
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