Error Limits - BRAND Dispensette III Mode D'emploi

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 Dispensette
Nominal volume
ml
0,5
1
2
5
10
25
50
100
* A = Accuracy, CV = Coefficient of Variation
For the instrument with the chosen fixed volume, the values of A and CV are calculated in accordance
with the nominal volume for the instrument size used.
For example
Fixed volume 42 ml, instrument size 50 ml
50 ml
A% = · 0.5% = 0.6%
42 ml
50 ml
CV = · 0.1% = 0.12%
42 ml
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 calculated EL = A + 2 CV (e.g. for volume 10 ml: 50 µl + 2 x 10 µl = 70 µl).
®
A* ≤ ±
µl
%
1.0 5
0.5 5
0.5 10
0.5 25
0.5 50
0.5 125
0.5 250
0.5 500
CV* ≤
µl
%
0.2 1
0.1 1
0.1 2
0.1 5
0.1 10
0.1 25
0.1 50
0.1 100

Error Limits

20 °C
!
Ex
Type Digital • Easy
Calibration is manufac-
tured under U.S. Patent
5,957,330.
45