Deha With Vario Powder Pack And Liquid Reagent - Lovibond MD 110 Manual De Instrucciones

Methods
GB
DEHA
Zero
Test
DEHA
0.0.0
Zero
Test
DEHA
RESULT
58
DEHA (N,N-Diethylhydroxylamin) with VARIO
Powder Pack and Liquid Reagent
20 – 500 μg/l DEHA
Use two clean vials (24 mm Ø) and mark one as blank for zeroing
(Note 2).
Fill a clean vial with 10 ml deionised water (this is the blank).
Fill the second clean vial with 10 ml of the water sample (this is
the sample).
Add the contents of one VARIO OXYSCAV 1 Rgt Powder Pack straight
from the foil into each vial.
Close the vials tightly with the caps and swirl several times to mix the
contents.
Add 0.20 ml VARIO DEHA 2 Rgt Solution to each vial (Note 4).
Close the vials tightly with the caps and swirl several times to mix the
contents.
Wait for a reaction period of 10 minutes (Note 5).
After the reaction period is finished proceed as follows:
Place the vial (the blank) in the sample chamber making sure that the
marks are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 8 seconds.
The display shows:
Remove the vial from the sample chamber.
Place the vial (the sample) in the sample chamber making sure that
the marks are aligned.
Press the [ZERO/TEST] key.
The method symbol flashes for approx. 3 seconds.
The result is shown in the display in µg/l DEHA.
MD110_1 12/2016