Toption Pipette uses
the air displacement principle, the piston in the piston sleeve moving at
a fixed range (adjustable), to generate negative
pressure, suck in quantitative (adjustable) liquid. It has many advantages, such
as convenient use, reliable performance. All
TOPTION pipettes have been quality tested according to ISO8655-2:2002 with
calibration certificate. The quality control involves gravimetric
testing of each pipette with distilled water at 22℃. 5-50UL