Thermo Fisher Scientific, S.L. - Pipettes, burettes and graduated cylinders
Pyrex
Specimens of class B with glass stopper: hexagonal base and scale graduating white
The test pieces short of class B with glass stopper have the following characteristics: - in accordance with standard ISO 4788 - supplied with replaceable glass stopper - graduated scale in white enamel to improve their reading when using dark solutions - manufactured in borosilicate glass Pyrex resistant to the action of chemical products - solid hex base.