The Calibrex organo 525 includes a ground glass plunger, best suited for organics, non-crystallizing acid and base solutions. The Calibrex solutae 530 has a PFA coated plunger preventing the plunger and barrel from seizing together. This enables trouble free distribution of salt solutions, weak and strong acids, as well as bases. Both models are available with a stopcock for added safety. These bottle top dispensers are intended for the safe and reproducible liquid distribution of volumes up to 25, 50 and 100 mL.
Selection between organo and solutae models for best chemical resistance