Hach DR/700 Procedures Manual page 50

6. Use the thumb and forefinger to twist the turret cap to the next higher
position on the volume-setting ring to assure full blowout and
quantitative transfer of the sample. The "F" position provides full
blowout for the 1.0-mL setting.
7. With the tip in contact with the side of the receiving vessel, slowly
and smoothly press down on the cap until the turret reaches the stop and
the solution is completely discharged.
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