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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*:
100 s
V
*) = Calculation for accuracy (A%) coefficient of variation (CV%): A% and CV% are calculated
using the formulas of statistical quality control.
NOTICE!
Test Instructions (SOPs) are available for download from www.starlabgroup.com.
7.
Accuracy table
Volume
Partial
range [µl]
volume [μl]
0.5 - 10
10
5
1
1 - 20
20
10
2
5 - 100
100
50
10
15 - 300
300
150
30
50 - 1250
1250
625
125
*A = Accuracy, CV = Coefficient of Variation
20 °C
!
Ex
22 · ErgoOne
E Multi-Channel Pipettes · User Manual
®
n = Number of weighings
Mean volume:
Standard deviation*:
A* ≤± %
CV* ≤%
1.2
0.8
2.0
1.5
8.0
4.0
1.0
0.5
2.0
1.0
8.0
3.0
0.8
0.25
1.6
0.4
4.0
1.5
0.6
0.25
1.2
0.4
3.0
1.2
1.0
0.25
1.2
0.4
5.0
1.2
Final test values based on the nominal volume (= max. volume)
printed on the device and the specified partial volumes at the same
temperature (20 °C/68 °F) of the device, surroundings and distilled
water, in accordance with DIN EN ISO 8655.
V
0
Accuracy*:
Substeps
Recommended tip type
[μl]
[μl]
0.01
0.5 - 20
0.02
0.5 - 20
0.1
2 - 200
0.5
5 - 300
1.0
50 - 1250
= nominal volume
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