Tintometer Lovibond MD200 Mode D'emploi page 46

Methods
GB
Cu
0.0.0
Zero
Test
Cu
RESULT
Zero
Test
Cu
RESULT
Reagent
Set
COPPER No. 1 / No. 2
COPPER No. 1
COPPER No. 2
46
Copper with Tablet
0.05 – 5.0 mg/l
a) free Copper
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
perform zero calibration (see "Operation").
Add one COPPER No. 1 tablet straight from the foil and crush the
tablet using a clean stirring rod.
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
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 Copper.
b) total Copper
Add one COPPER No. 2 tablet straight from the foil to the same
water sample and crush the tablet using a clean stirring rod.
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
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 total Copper.
c) combined Copper
combined Copper = total Copper – free Copper
Tolerances:
0.05 – 1 mg/l: ± 0.05 mg/l Cu
> 1 – 5 mg/l: ± 0.10 mg/l Cu
Form of reagent/Quantity
Tablet / per 100
inclusive stirring rod
Tablet / 100
Tablet / 100
marks
marks
Order-No.
517691BT
513550BT
513560BT
MD200_7 08/2015