Hach DR2400 - Page 314

Hydrazine
Hydrazine
Page 2 of 4
Hydrazine_AccuVac_Other_PDA_Eng_Ody.fm
5. Touch the timer icon.
Touch
OK.
A 12-minute reaction
period will begin.
Complete steps 6–8
during this period.
6. Place the blank into
the cell holder.
7. Touch Zero.
The display will show:
0 µg/L N
2
H
4
8. Place the prepared
sample into the cell
holder.
Immediately after the
timer beeps, touch
Read.
Results will appear in µg/
L N
2
H
4
.
1. Touch
Hach Programs.
Select program
232 Hydrazine AV.
Touch
Start.
2. Collect at least 40 mL
of sample in a 50-mL
beaker.
Pour at least 40-mL of
deionized water into a
second beaker.
3. Fill a HydraVer
Hydrazine AccuVac®
Ampul with sample.
Fill a second ampule with
deionized water (the
blank).
4. Immediately touch
the timer icon.
Touch
OK.
A 12-minute reaction
period will begin.
Complete steps 5–7
during this period.
10 mL
Zero
10 mL
AccuVac Ampul Method 8141
Hach Programs
Keep the tips immersed
while the ampules fill
completely.