Methods; Chlorine With Powder Pack - Lovibond CheckitDirect Mode D'emploi

Methods

GB
0.0.0
Zero
Test
CLP
RESULT
Zero
!
Test
CLP
RESULT
22

Chlorine with powder pack

0.01 – 2.0 mg/l
a) free 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.
Add the contents of one Vario Clorine FREE-DPD/F10 Powder
Pack straight from the foil into the water sample.
Close the vial tightly with the cap and swirl gently several times
(20 sec.).
Place the vial in the sample chamber making sure that the
are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 3 seconds.
The result is shown in the display in mg/l free Chlorine.
b) total Chlorine
Remove the vial from the sample chamber. Rinse the vial and the
cap several times and then fill the vial with 10 ml of water sample.
(Note 2)
Add the contents of one Vario Chlorine TOTAL-DPD / F10 Powder
Pack straight from the foil into the same water sample.
Close the vial tightly with the cap and swirl gently several times
(20 sec.).
Place the vial in the sample chamber making sure that the
are aligned.
Wait for a reaction period of 3 minutes.
(Countdown can be activated, see page 21)
The method symbol flashes for approx. 3 seconds.
The result is shown in the display in mg/l total Chlorine.
c) combined Chlorine
combined Chlorine = total Chlorine – free Chlorine
Tolerances:
0 – 1 mg/l: ± 0.05 mg/l
> 1 – 2 mg/l: ± 0.10 mg/l
Notes:
see page 23
CheckitDirect_Cl_Vario_pH_2b 05/2011
marks
marks