Chlorite with tablet 0.03 ... 2.5 mg/l
1.
In a 24 mm cuvette add a 10 ml
water sample and carry out a
zero correction
2.
Remove the cuvette from the
sample chamber and empty the
cuvette completely
Sample preparation:
If there is chlorine dioxide in the
water sample
3.
Add 25-30 ml of the water
sample to the 100 ml PP beaker
4.
Remove the chlorine dioxide
from the water sample by
frothing the water sample with
the battery operated frother for
at least 5 minutes
5.
Insert two
[DPD chlorine dioxide no. 1]
tablets from the blister packet
directly into the square plastic
vessel and crush the
[DPD chlorine dioxide no. 1]
tablets with a stirring rod
6.
Fill the square plastic vessel up
to the 10 ml marking with the
chlorine dioxide-free water
sample
7.
Stir the water sample until the
crushed tablets have completely
dissolved.
8.
Insert two
[DPD chlorine dioxide no. 2]
tablets from the blister packet
directly into the square plastic
vessel. Do not crush the tablets.
Stir the water sample with a
clean stirring rod
9.
Decant the contents of the
square plastic vessel, until just a
small amount remains, into the
24 ml cuvette
10. Close the cuvette using the cuv‐
ette lid
11. Mix the contents of the cuvette
by tipping it back and forth, until
the tablet has dissolved
12. Position the cuvette in the
sample chamber
ð
Observe the correct posi‐
tioning of the cuvette.
13. Press the key
[ZERO/TEST]
ð
[METHOD] flashes for
approximately 3 seconds.
The result in mg/l of chlorite
appears in the display.
Analysis methods
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