Lovibond MiniDirect Cl Instrucciones página 24

Methods
GB
0.0.0
Zero
Test
CLP2
RESULT
Zero
Test
CLP2
RESULT
24
Chlorine 0.1 - 8.0 mg/l with Powder Packs (CLP2)
with plastic vial 10 mm
a) free Chlorine
Fill a clean vial (10 mm
zero calibration (see "Operation") .
Add the contents of two 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 (10 mm
zero calibration (see "Operation") .
Add the contents of two 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 - 6 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:
2 – 3 mg/l: ± 0,2 mg/l
> 3 – 4 mg/l: ± 0,3 mg/l
> 4 – 8 mg/l: ± 0,4 mg/l
Notes:
1 . If chlorine is at concentrations under 2 mg/l the 0,01 - 2 mg/l measure
range would be used (CLP1) .
2 . see page 22
) with 5 ml of the water sample and perform
) with 5 ml of the water sample and perform
MiniDirect_Cl_1 09/2008
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