1.1 Methods
Hardness, total HR
with Tablet
20 – 500 mg/l CaCO
3
1. Fill a clean vial (24 mm Ø) with 1 ml of the water
sample and 9 ml of deionised water, 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.
5. Add one HARDCHECK P tablet straight from the foil
to the water sample and crush the tablet using a clean
stirring rod.
6. Close the vial tightly with the cap and swirl several times
until the tablet is dissolved.
7. Place the vial in the sample chamber making sure that
the
marks are aligned.
8. Press TEST key.
Wait for a reaction period of 5 minutes.
After the reaction period is finished the measurement
starts automatically.
The result is shown in the display as total Hardness.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
5:00
0
1
2
To Next Page
Loading...
