AND GR Series Manuale di istruzioni - Pagina 15
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Use the following equations to obtain the density.
• Three significant digits
A
ρ
=
| B |
Weight in air
Weight in
(A)
water (B)
(g)
(g)
4.8102
0.5946
Weight in air
Weight in
(A)
water (B)
(g)
(g)
4.8102
0.5946
ρ
x
0
ρ :
Density of sample (g/cm
A : Weight in air
B : Weight in water
ρ
: Density of water
0
d : Density of air (g/cm
Example of recording sheet
Water temperature
(°C)
26
Water density
3
(g/cm
)
0.99678
Water
Atmospheric
temperature
pressure
(°C)
(hPa)
26
Water
Air
density
density
3
(g/cm
)
(g/cm
0.99678
0.0012
13
• Four or more significant digits
A
ρ
ρ
=
x (
– d) + d
0
| B |
3
)
3
)
(Calculated value)
(Calculated value)
3
)
3
(g/cm
)
8.06
3
(g/cm
)
8.055