VITLAB piccolo 1 Instrucciones De Manejo página 33

Calculations for nominal volume V
N
x = results of weighings
i
n = number of weighings
Z = correction factor
(e. g., 1.0029 µl/mg at 20 °C, 1013 hPa)
Mean value Accuracy
Σ x
V – V
A% = · 100
x = i N
n
V
N
Mean volume
Coefficient of variation
100 s
V = x · Z CV% =
V
Standard deviation
Σ (x
– x )
2
i
s = Z ·
n – 1
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