page 46 Measurements with the plate or rod method
Display Action Explanation
Searching
automatic
Searches for the surface: the liquid
is moved upwards until the probe
“jump“ is registered. The surface
position is stored.
Immersing
automatic
Immerses the probe to the given
immersion depth.
Cover with the
light phase
Carefully overlay
the heavy phase
with the light phase,
best done by
running it down the
vessel side from a
pipette.
Measuring
Displays the
individual measured
values
automatic
Returns to the found surface
height.
Records measured values until the
required number of values has
been obtained.
Finished
Displays the final
results:
Avarage (mN/m)
Standard
deviation (mN/m)
Temperature (°C)
automatic
The measurement is complete.
The data found are used to display
the mean value of the interfacial
tension, the standard deviation
and the temperature.
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