3.
Gently immerse the hydrometer into the solution to be tested. The amount of solution
must be sufficient for the hydrometer to float (figure 22).
NOTE:
THE HYDROMETER MUST FLOAT
FREELY. IF IT CLINGS TO THE
SIDE OF THE BEAKER, GENTLY
SPIN IT FREE. (Figure 22.)
Figure 22
4.
The specific gravity is read at the point at which the solution clings to the hydrometer
(figure 23).
Figure 23
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