Oxygen, Dissolved; Hr (0.3 To 40.0 Mg/L) - Hach DR2400 Manual

DR/2400
Method 8166
®
AccuVac Ampuls
Scope and Application:
Tips and Techniques
• Analyze samples on-site. Do not store for later analysis.
AccuVac Ampul
Hach Programs Hach Programs
1.
Touch
.
Hach Programs
Select program
445 Oxygen Di. HR AV
Touch .
Start
5.
Hold the ampule with
the tip pointing down
and immediately place
the ampule into the
ampule cap.
The cap prevents
contamination from
atmospheric oxygen.
OxygenDis_AccuVac_High_HRD_Eng_Ody.fm
For water and wastewater
2.
Fill a round sample
cell (the blank) with at
least 10-mL of sample.
.
6.
Shake the ampule for
30 seconds.
A small amount of
undissolved reagent will
not affect results.

Oxygen, Dissolved

HR (0.3 to 15.0 mg/L O
3.
Fill a blue ampule cap
with sample.
7.
Touch the timer icon.
Touch .
OK
A two-minute reaction
period will begin. This
enables the oxygen that
was degassed during
aspiration to redissolve
and react.
HRDO Method
Method 8166
4.
Fill a High Range
Dissolved Oxygen
AccuVac Ampul with
sample. Keep the tip
immersed while the
ampule fills completely.
8.
When the timer
beeps, shake the ampule
for 30 seconds.
Oxygen, Dissolved
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