Drawing in solution with a standard white-tipped bulb

Make sure there is enough solution in your beaker to completely fill the pipet. (Never pipet a reagent directly from a reagent bottle.)

Place the tip of the pipet below the solution's surface in the beaker. Squeeze the rubber bulb and place the silicone attachment over the mouth of the pipet. Do not force the bulb onto the mouth of the pipet, but apply constant, gentle pressure to maintain a seal.

Gradually release the pressure on the bulb and allow the liquid to be drawn up higher than the desired volume. DO NOT ALLOW LIQUID TO ENTER THE BULB. With the tip of the pipet still below the solution's surface, quickly remove the bulb and place your finger or thumb over the mouth of the pipet to prevent the solution from draining back into the beaker. If the level of the solution is not high enough, squeeze the bulb again, quickly remove your finger and place the bulb over the mouth of the pipet to draw up more liquid.

Touch the tip of the pipet to the inside of the beaker to remove the drop hanging from the tip. If this drop is not removed, the volume transferred will be slightly higher than the volume desired.