Chlorine With Powder Pack - Lovibond MiniDirect Mode D'emploi

Methods
GB
0.0.0
Zero
Test
CLP
RESULT
Zero
Test
CLP
RESULT
26

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") .
Add the contents of one Vario Chlorine Free-DPD/F10 Powder
Pack straight from the foil into the water sample .
Close the vial tightly with the cap and invert several times to mix the
contents .
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
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
perform zero calibration (see "Operation") .
Add the contents of one Vario Chlorine Total-DPD/F10 Powder
Pack straight from the foil into the water sample .
Close the vial tightly with the cap and invert several times to mix the
contents .
Place the vial in the sample chamber making sure that the
are aligned .
Wait for a reaction period of 3 minutes.
Press the [ZERO/TEST] key .
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 . 1 0 mg/l
Notes:
1 . Do not use the same sample vial for free and total chlorine without
thoroughly rinsing the vial betweeen the two different tests .
2 . see page 24
MiniDirect_ClpH_1 09/2008
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