Sartorius YDK01 Mode D'emploi page 26

To allow for the buoyancy of the wires, subtract
the buoyancy "A" caused by the immersed wires
from the buoyancy determined for the sample:
G = W (a) – W (fl). The corrected buoyancy
"A (corr)" to use in this calculation is then: G – "A."
2
d
A (corr) = [W (a) – W (fl)] – 2 · · [W (a) – W (fl)]
2
D
2
d
[ ]
A (corr) = 1 – 2 · · [W (a) – W (fl)]
2
D
The specific gravity determination kit uses the
large-volume beaker (76 mm d) and an immersing
device with 2 wires (0.7 mm diameter) for the
determination of the specific gravity of solids.
When the values d = 0.7 mm and D = 76 mm are
plugged into the equation, the correction factor is:
2
0.7
1 – 2 · = 0.99983
2
76
When using devices with other dimensions,
the correction factor must be recalculated.
26