Of Liquids - Sartorius YDK03 Betriebsanleitung

Determining the Density of Liquids
Preparation
– Center the small-diameter beaker
(55 mm d) on the metal platform
– Attach the thermometer to the rim of
the beaker using the retainer clip
– When „LOW" is displayed,
add the compensating ring�
Measuring Procedure
– Suspend the disk with the glass
plummet (hanging on one wire) from
the frame
– Tare the balance
– Fill the beaker with the liquid to be
tested so that the liquid is 10 mm above
the glass plummet
Determining the Buoyancy
G = W (a) – W (fl)
The negative weight displayed by the
balance corresponds to the buoyancy
acting on the glass plummet in the liquid�
– Record the buoyancy displayed
with a negative sign
– Read off the temperature and record it
Calculating the Density
– Calculate the density using the
following formula:
G
ρ (fl) =
V
3
G in g; V in cm
The glass plummet included in the specific
gravity/density determination kit has a
volume of 10 cm 3 �
It is easy to obtain the current density of
the liquid (in g/cm 3 ); you will not need a
calculator� Mentally shift the decimal point
in the balance display one place to the left�
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