Class A flasks are available with a PTFE or glass stopper. Uniform wall construction
provides superior strength and durability. Flask has a wide mouth that allows easy access
for pipettes. Easy identification is achieved with large, easy-to-read markings. Flat bottoms
are ideal for precise stirring with standard stir bars. The 5- to 250-mL capacity flasks are
calibrated to meet ASTM E288 standards. Autoclavable.
