Rinsing a Buret
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Before filling a buret, it is important to first rinse the buret with the solution you will be using. Make sure the stopcock is closed, and fill the buret approximately one-tenth full with the solution.
Hold the buret horizontally between your fingers, and slowly rotate to insure complete rinsing of the sides.
Return the buret to an upright position and allow the solution to drain through the tip.
Repeat the rinsing procedure once more.