1.1 Methods
Ozone,
in absence of Chlorine
with Tablet
0.02 – 2 mg/l O
3
1. Fill a clean vial (24 mm Ø) with 10 ml of the water
sample, close tightly with the cap.
2. Place the vial in the sample chamber making sure that
the
marks are aligned.
3. Press ZERO key.
4. Remove the vial from the sample chamber and empty it,
leaving a few drops remaining in the vial.
5. Add one DPD No. 1 tablet and one DPD No. 3 tablet
straight from the foil and crush the tablets using a clean
stirring rod.
6. Add water sample to the 10 ml mark.
7. Close the vial tightly with the cap and swirl several times
until the tablets are dissolved.
8. Place the vial in the sample chamber making sure that
the
marks are aligned.
9. Press TEST key.
Wait for a reaction period of 2 minutes.
After the reaction period is finished the measurement
starts automatically.
The result is shown in the display in
mg/l Ozone.
Notes:
See page 137.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
2:00
0
0
3
To Next Page
Loading...
