Tintometer Lovibond MD100 Instrucciones página 78

Methods
GB
Copper with Tablet
Cu
0.3 – 5.0 mg/l Cu
a) free Copper
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
0.0.0
perform zero calibration (see "Operation").
Add one COPPER No. 1 tablet straight from the foil to the 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.
Zero
Press the [ZERO/TEST] key.
Test
The method symbol flashes for approx. 3 seconds.
Cu
RESULT
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.
Zero
Press the [ZERO/TEST] key.
Test
Cu The method symbol flashes for approx. 3 seconds.
RESULT The result is shown in the display in mg/l total Copper.
c) combined Copper
combined Copper = total Copper – free Copper
78
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MD100_7 12/2016