Methods
GB
Si
Tablet
Powder
0.0.0
Tablet
Powder
Zero
!
Test
Si
Tablet
Powder
RESULT
Tablet
Powder
28
Silica/ Silicon dioxide with Tablet
0.05 – 4.0 mg/l SiO
Fill a clean vial (24 mm Ø) with 10 ml of the water sample and
perform zero calibration (see "Operation").
Add one SILICA No. 1 tablet straight from the foil to the 10 ml 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.
Wait for a reaction period of 5 minutes.
After the reaction period is finished proceed as follows:
Add one SILICA PR tablet straight from the foil to the same water
sample and crush the tablet using a clean stirring rod.
Add one SILICA 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 tablets are dissolved.
Place the vial in the sample chamber making sure that the
are aligned.
Wait for a reaction period of 2 minutes.
(Countdown can be activated, see page 27)
The method symbol flashes for approx. 3 seconds.
The result is shown in the display in mg/l Silica.
Tolerance: ± 0.1 mg/l SiO
2
2
marks
MD100_8 07/2016