Biohit eLINE 73002X, Руководство пользователя

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Z-values ( µ l/mg):
Temp. ( O C) Air Pressure (kPa)
95 100 101.3 105
20.0 1.0028 1.0028 1.0029 1.0029
20.5 1.0029 1.0029 1.0030 1.0030
21.0 1.0030 1.0031 1.0031 1.0031
21.5 1.0031 1.0032 1.0032 1.0032
22.0 1.0032 1.0033 1.0033 1.0033
22.5 1.0033 1.0034 1.0034 1.0034
23.0 1.0034 1.0035 1.0035 1.0036
23.5 1.0036 1.0036 1.0036 1.0037
Note: This method is based on ISO 8655.
14. Compare the systematic error (inaccuracy) and random error (imprecision)
to the performance specification values in chapter 14., or to the specifications
of your own laboratory.
Note: Systematic error is the difference between the dispensed volume and the
selected test volume. Random error is the scatter of the dispensed volumes
around the mean of the dispensed volume. (ISO 8655-1.)
Note: Biohit specifications are achieved in strictly controlled conditions (ISO
8655-6). Users should establish acceptable maximum permissible errors based
on the field of use and the accuracy requirements placed on the pipettor (ISO
8655-1).
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13. For conformity evaluation calculate the random error of the measurement:
Σ (V
i
–V) 2 n = number of measurement (10)
as standard deviation s =
n –1
or as coefficient of variation CV = 100s/V
11. Calculate the mean volume (V) delivered:
V = ( Σ V
i
)/10
12. For conformity evaluation calculate the systematic error e
s
of the
measurement:
in µ l: e
s
= V –V
s
V
s
= selected test volume
or in %: e
s
= 100 (V –V
s
)/V
s