Class A Volumetric Flasks with Stoppers

Photo of Corning 5660 PYREX® Class A Lifetime Red Volumetric Flask with Glass Standard Taper Stopper

These Class A PYREX® Lifetime Red volumetric flasks have the capacity mark etched as a fine line through a narrow red band into clear glass, making a filler unnecessary and giving high legibility, accuracy and permanence. The strength of these flasks has been increased appreciably through machine-blown bodies to which are sealed heavy-tubing necks tooled for ST glass stoppers. For replacement stoppers see Corning No. 7650.

Photo of Corning 5640 PYREX® Class A Volumetric Flasks with PYREX® Glass Standard Taper Stopper

These PYREX® 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 ST glass stoppers. The graduation line is sharp and permanent and large white block letters make the inscription easy to read. The 1mL and 2mL sizes are test tube shaped. Sizes 3L thru 6L have ST pennyhead stoppers.

Photo of Kimble 28013 KIMAX Class A Volumetric Flask with Red Stripe and Glass Pennyhead Stopper

Kimble 28013 KIMAX Class A Volumetric Flask with Red Stripe and Glass Pennyhead Stopper are calibrated 'To Contain'. A graduation ring is blasted through a vertical stripe on the neck. Contrast between the blasted line and the deep amber background provides legibility without coloring of the graduation line. Calibrated to contain. Standard taper ground glass stopper is supplied with the flask. Replacement stopper is 850100. Designed from ASTM Specification E288, Class A unserialized requirements.

(Sample Photo Displayed. Individual items may differ from the image shown)

Photo of Kimble 28014 KIMAX Class A Volumetric Flasks with Glass Pennyhead Stopper

Kimble 28014 KIMAX Class A Volumetric Flasks with Glass Pennyhead Stoppers with a single graduation ring blasted on the neck, calibrated to contain. A standard taper ground glass stopper is supplied with each flask. A marking spot is on sizes 10mL and larger. Sizes 5mL and larger are designed from ASTM Specification E288, Class A unserialized requirements. The 1 and 2mL sizes are test tube shaped and are calibrated to E237 tolerances. Replacement stopper is 850100.

(Sample Photo Displayed. Individual items may differ from the image shown)