Camlab Lovibond MD 610, Instruction Manual

Page: 32 / 371

26
MD 610_2d 11/2019
Aluminium
with Vario Powder Pack
0.01 – 0.25 mg/l Al
Use two clean vials (24 mm Ø) and mark one as blank
for zeroing.
1. Fill 20 ml of the water sample in a 100 ml beaker.
2. Add the contents of one Vario Aluminum ECR F20
Powder Pack straight from the foil to the water sample.
3. Dissolvethe powder using a clean stirring rod.
4. Press [ ] key.
Wait for a reaction period of 30 seconds.
After the reaction period is finished proceed as follows:
5. Add the contentsof one Vario Hexamine F20 Powder
Pack straight from the foil to the same water sample.
6. Dissolvethe powder using a clean stirring rod.
7. Add 1 drop of Vario Aluminum ECR Masking
Reagent in the vial marked asblank.
8. Add 10 ml of the preparedwater sampleto the vial (this
is the blank).
9. Add the remaining 10 ml of the preparedwater sample
in the second clean vial (this is the sample).
10. Close the vials tightly with the caps and swirl several
times to mix the contents.
11. Press [ ] key.
Wait for a reaction period of 5 minutes .
After the reaction period is finished proceed as follows:
12. Place the vial (the blank) in the sample chamber
making sure that the marks are aligned.
Countdown 1
0:30
start:
Countdown 2
5:00
start:
1 2
3 4
5 0