Error Limits
Error limits 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 with a completely filled instrument and with uniform and
smooth dispensing.
Nominal volume
ml
A*
≤
±
%
µl
CV*
≤
%
µl
2
1.2
24
0,2
4
10
1.2
120
0,2
20
25
1.2
300
0,2
50
* A = Accuracy, CV = Coefficient of Variation
Error limits seripettor
®
/ seripettor
®
pro
!
20 °C
Ex
38
e.g.
Volume
A*
≤
±
%
µl
CV*
≤
%
µl
V
N
10
1.2
120
0,2
20
V
T
= 50% N
5
2.4
120
0,4
20
V
T
= 10% N
1
12
120
2,0
20
Note:
The maximum error limit for a single measurement can be calculated
EL = A + 2 CV (e.g. for volume 10 ml: 120 µl + 2 x 20 µl = 160 µl).
Partial volume
The percentage values for A and CV are relative to the nominal volu-
me (V
N
) and must be converted for partial volumes (V
T
).
V
N
V
T
A
T
= · A
N
* A = Accuracy, CV = Coefficient of Variation
