ProMinent DULCOTEST DT4B, Operating Manual, Page: 30 / 40

14.
Measurement tolerances:
–
0 ... 0.48 mg/l: ± 0.02
mg/l
–
> 0.48 ... 0.95 mg/l: ±
0.05 mg/l
–
> 0.95 ... 1.43 mg/l: ±
0.10 mg/l
–
> 1.43 ... 1.90 mg/l: ±
0.14 mg/l
–
> 1.90 ... 2.50 mg/l: ±
0.19 mg/l
ð
Remarks: 1. See also
remarks
[chlorine / chlorine dioxide]
2. When there is a mixture
of chlorine dioxide and
chlorite (with the
[DPD chlorine dioxide no. 1]
tablets and
[DPD chlorine dioxide no. 2]
tablets) the DPD measure‐
ment outputs a total value.
However as the chlorine
dioxide is easily outgassed
from the sample, it is recom‐
mended that prior to the
chlorite determination the
chlorine dioxide is com‐
pletely driven off, as
described in the sample
preparation
Ä
‘Chlorite with
tablet 0.03 ... 2.5 mg/l’
on page 29.
Analysis methods
30