Nitrate
Nitrate
Nitrate_AVPP_HR_CDR_Eng_Ody.fm Page 3 of 6
1. Touch
Hach Programs.
Select program
361 N, Nitrate HR AV.
Touch
Start.
2. Collect at least 40 mL
of sample in a 50-mL
beaker.
3. Fill a NitraVer 5
Nitrate AccuVac
®
Ampul
with sample. Keep the tip
immersed while the
ampule fills completely.
Place a stopper over the
ampule tip.
4. Touch the timer icon.
Touch
OK.
A one-minute reaction
period will begin. Invert
the ampule 48–52 times a
minute until the timer
beeps.
5. When the timer
beeps, touch the timer
icon. Touch
OK.
A five-minute reaction
period will begin.
An amber color will
develop if nitrate is
present.
6. When the timer
beeps, fill a round sample
cell with 10 mL of sample
(this is the blank).
7. Wipe the blank and
place it into the cell
holder.
8. Touch Zero.
The display will show:
0.0 mg/L NO
3
–
–N
AccuVac
®
Ampul Method 8039
Hach ProgramsHach Programs
10 mL
Zero
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