Chlorine Dioxide With Tablet - Lovibond CheckitDirect Cl LR Mode D'emploi

Methods
GB

Chlorine dioxide with Tablet

0.02 – 11 mg/l
in absence of Chlorine
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
perform zero calibration (see "Operation").
Remove the vial from the sample chamber and empty it, leaving a few
0.0.0
drops remaining in the vial.
Add one DPD No. 1 tablet straight from the foil and crush the tablet
using a clean stirring rod.
Add the water sample to the 10 ml mark. Close the vial tightly with the
cap and swirl gently several times until the tablet is dissolved.
Place the vial in the sample chamber making sure that the marks
are aligned.
Zero
Press the [ZERO/TEST] key.
Test
CLO2
The method symbol flashes for approx. 3 seconds.
RESULT
The result is shown in the display in mg/l ClO .
2
Tolerances:
0.1 – 1.9 mg/l: ± 0.1 mg/l
> 1.9 – 3.8 mg/l: ± 0.2 mg/l
> 3.8 – 5.7 mg/l: ± 0.4 mg/l
> 5.7 – 7.6 mg/l: ± 0.6 mg/l
> 7.6 – 11.0 mg/l: ± 0.8 mg/l
28 CheckitDirect_Cl LR Cl HR ClO2_2c 05/2011