!
20 °C
Ex
Nominal volume
ml
A*
≤
±
%
µl
CV*
≤
%
µl
10
0.5
50
0.1
10
* A = Accuracy, CV = Coefficient of Variation
Error limits VITLAB
®
Dispenser TA
2
Error limits according DIN EN ISO 8655-5 related to the nominal capacity
(= maximum volume) indicated on the instrument, obtained when instrument and
distilled water are equilibrated at ambient temperature (20 °C/68 °F). Testing takes
place according DIN EN ISO 8655-6 with a completely filled instrument and with
uniform and smooth dispensing.
Partial volume
The percentage values for A and CV are relative to the nominal volume (V
N
) and
must be converted for partial volumes (V
T
).
V
N
V
T
A
T
= · A
N
e.g.
volume
A*
≤
±
%
µl
CV*
≤
%
µl
V
N
10.0
0.5
50
0.1
10
V
T
= 50% N
5.0
1.0
50
0.2
10
V
T
= 10% N
1.0
5.0
50
1.0
10
* A = Accuracy, CV = Coefficient of Variation
9. Error Limits
Note:
The error limits are well within the limits of DIN EN ISO 8655-5.
The maximum error limit for a single measurement can be calcu-
lated EL = A + 2 CV (for volume 10 ml: 50 µl + 2 x 10 µl = 70 µl).
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