Hach-Lange Piston pipette - Manual (Page 19)

17
Section 3 Standard technique
1. Press the push button to the first pressure point.
2. Dip the pipette tip under the surface of the liquid (2–3 mm)
and slowly release the push button. Take the tip out of the
liquid and touch it against the inside wall of the vessel to
remove excess liquid.
3. Place the tip against the inside wall of the vessel and
press lightly and evenly on the push button until the first
pressure point is reached. Hold the pipette in this position.
After about one second, press the push button until the
second pressure point is reached. This completely
empties the tip.
4. Allow the push button to return to its rest position.
Important Note: After use change pipette tip!
Figure 3 Standard technique
a Rest position c Second pressure point
b First pressure point
AV_pipette.book Seite 17 Donnerstag, 8. Dezember 2005 3:56 15