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PYREX 1L Class A Volumetric Flask with PTFE Stoppe

PYREX 1L Class A Volumetric Flask with PTFE Stoppe

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Corning These 1L Class A PYREX(r) volumetric flasks have machine-blown bodies to which are sealed heavy-beaded, heavy-tubing necks, tooled for No. 22 PTFE color-coded keyhole stoppers. For replacement stoppers see No. 7630. The graduation line is sharp and permanent. 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. - COG

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