Flask Volumetric PP Screw Closure 50mL

The accuracy of standard glass flasks combined with the break resistance of plastic. Gravimetrically calibrated individually TC/TD at 20°C.

Printing is durable; won't wear off. Guaranteed to meet the Class B accuracy requirements of ASTM E288 and ISO Standard 384. No meniscus to confuse readings.

Before autoclaving, set closure on top of the container without engaging the threads.