"Ward's Phenomena"

Class A Flasks.

Polypropylene volumetric flasks with single graduation line and screw caps.

Class A borosilicate glass Volumetric flasks with PE stoppers and calibration certificates.

Class B volumetric flasks without stoppers are made from borosilicate 3.3 glass and feature a graduation mark, blue enamel markings, and beaded rims.

Set of 25, 50 and 100 ml ASTM Class B borosilicate glass volumetric flasks with pennyhead stoppers.

Class A USP borosilicate glass volumetric flasks with PP stoppers and calibration certificates.

Class B Volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue enamel markings.

ASTM Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue enamel markings.

ASTM Class B volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene snap cap, and blue or white enamel markings.

Class A Amber volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and white enamel markings.

ASTM Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, solid glass pennyhead stopper, and blue or white enamel markings.

Class A volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene stopper, and blue or white enamel markings.

ASTM Class A Volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, polypropylene snap cap, and blue or white enamel markings.

These volumetric flasks are made of borosilicate glass.

ASTM Class B Volumetric flasks are made from borosilicate 3.3 glass and feature a graduation mark, solid glass penny head stopper, and blue or white enamel markings.