Dispenser Ceramus® HF, 2 - 10 ml, bottle top dispenser for HF and other extremely aggressive liquids, with reagent recirculation system, digital volume setting in various steps. Piston, cylinder, valve seats and balls are made of highly pure ceramic (Al2O3), valve springs are made of platinium/Iridium, autoclavable at 121°C, complete with thread A 45 mm, 3 thread adapters (A 32, S 40 and A 38), 1 screw-coupled suchtion tube, 1 discharge tube unit complete, with individual serial number and test certificate, with declaration of conformity acc. to DIN 12600.