Lovibond Maxi Direct, Instruction Manual, Page: 32 / 268

30 MaxiDirect_2c 03/2010
1.1 Methods
Boron
with Tablet
0.1 – 2 mg/l B
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.
5. Add one BORON No. 1 tablet straight from the foil
to the water sample and crush the tablet using a clean
stirring rod and dissolve the tablet.
6. Add one BORON No. 2 tablet straight from the foil
to the same water sample and crush the tablet using a
clean stirring rod.
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 20 minutes.
After the reaction period is finished the measurement
starts automatically.
The result is shown in the display in mg/l Boron.
prepare Zero
press ZERO
Zero accepted
prepare Test
press TEST
Countdown
20:00
8 5