BRAND Transferpette S-8 Instrucciones De Manejo página 47

d.
At least 10 pipetting series and weighings in 3 volume ranges (100 %,
50 %, 10 %) are recommended.
Calculation (for nominal volume)
x = weighing results
i
Z = Correction factor (e.g. 1.0029 µl/mg at 20°C, 1013 hPa)
Mean:
Coefficient of variation*:
*) = Calculation for accuracy (A%) coefficient of variation (CV%): A% and
CV% are calculated using the formulas of statistical quality control.
Test instructions (SOPs) are available for download at www.brand.de .
Transferpette® S-8/-12 997208
n = number of weighings
Mean volume:
Standard deviation*:
NOTICE
V = nominal volume
0
Accuracy*:
Operating manual
47