The heavy wall design of these flasks yields added durability. Easy access when using a pipet or adding solid material is provided by the wide mouth, screw thread opening. The mixing bulb is useful in dissolving tablets and other solids. The flasks are designed to ASTM for class A volumetric standards and are calibrated to contain. The screw thread feature also allows safe and secure storage. The cap is chemically resistant and provides an air-tight seal. It can be used in high temperature applications as high as 180°C.
