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Corning Pyrex 5642-50 Borosilicate Glass 50mL +/- 0.05mL Flat Bottom Class A Heavy Duty Volumetric Flask, with Polyethylene Standard Taper Stopper (Pack of 6)
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Corning Pyrex 5642-50 Borosilicate Glass 50mL Features
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Capacity: 50mL; height: 151mm; outer diameter: 51mm; tolerance: +/- 0.05mL
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Made from borosilicate glass code 7740
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Flat bottom volumetric flask has a No. 9 linear high density polyethylene stopper with a closed bottom
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Reusable heavy duty flask has a long neck style
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Manufactured to class A tolerances as established by ASTM E-694 - ASTM E-542 - and ASTM E-288
About Corning Pyrex 5642-50 Borosilicate Glass 50mL
These 50mL Class A PYREX volumetric flasks have machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for No. 9 standard taper polyethylene stoppers. The linear high density polyethylene stoppers are made with a closed bottom to conform to standard taper stopper dimensions. 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: 50mL. Flask Style: Volumetric. Flask Shape: Flat Bottom. Top Style: Standard Taper Stopper. Neck Style: Long. Stopper Style: HDPE. Standard Taper Stopper Number: No. 9. Flask Feature: Heavy Duty. Accuracy Class: Class A. Feature: Reusable. Tolerance: +/-0.05mL. Height: 151mm. Outer Diameter: 51mm. Corning#: 5642-50.
