Error Limits (Nominal Volume, Partial Volume) - BRAND Dispensette S Instrucciones De Manejo

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 according DIN EN
ISO 8655-6 with a completely filled instrument and with uniform and smooth
dispensing.
Error limits
Nominal volume
ml
1
2
5
10
25
50
100
Partial volume
The percentage values for A and CV are relative to the nominal volume (V
and must be converted for partial volumes (V
V
N
A = · A
V
T N
T
e.g. Volume
V
N
V = 50% N
T
V = 10% N
T
* A = Accuracy, CV = Coefficient of Variation
Note:
The error limits in DIN EN ISO 8655-5 are satisfied with a significant margin.
The maximum error for a single measurement is calculated from the sum of
error limits EL = A + 2 × CV
(e.g., for the 25 ml size: 125 µl + 2 x 25 µl = 175 µl).
46
A* ≤ ±
% µl
0.6 6
0.5 10
0.5 25
0.5 50
0.5 125
0.5 250
0.5 500
A* ≤ ±
% µl
25.0 0.5 125
12.5 1.0 125
2.5 5.0 125
CV* ≤
%
0.2
0.1
0.1
0.1 10
0.1 25
0.1 50
0.1 100
).
p
CV* ≤
%
0.1
0.2
1.0
20 °C
!
Ex
Type Digital • Easy
Calibration is manufac-
tured under U.S. Patent
5,957,330.
µl
2
2
5
)
N
µl
25
25
25