KONTES® Volumetric Flask, Class A, with Mixing Bulb and Pennyhead Glass Stopper, Wide Mouth, 30 mL

Volumetric flasks are used for the accurate measurement of specific quantities of liquids. They are volumetric analysis aids in quantitative laboratory work.␍Volumetric flasks are available in two different accuracy classes: Class A and Class B. The two classes differ in the accuracy of measurement with Class A being the highest accuracy, and Class B is approximately half that of Class A.

Complies with ASTM Specification E288, Class A requirements
Manufactured from borosilicate glass 3.3
The mixing bulb in the neck, between the stopper and capacity ring, contains approximately one tenth of the capacity of the body and is designed to aid in dissolving or mixing the contents of the flask.
Calibrated to contain
Wide mouth versions allow easy access into these mixing bulb volumetric flasks for applications such as dissolving tablets and other solids
Heavy wall versions have thicker wall weight for higher mechanical strength and durability to prevent breakage and flaws in the glass
All flasks include a marking spot for labeling
Supplied with Pennyhead Glass Stopper