Pipette for sampling and dispensing adjustable volumes of liquids

摘要: A pipette body extends along a longitudinal axis and piston mounted in sliding fashion this inside the said so as to define chamber of variable volume emerging at sampling orifice, being driven over limited distance travel direction orifice by means pressure manually exerted on push rod body, opposite reaction elastic return until it abuts against an axial extremity metal sheath extending side body. The has external thread which works engaging with such way move longitudinally when rotations, order adjust chamber.