Chlorine Dioxide
Chlorine Dioxide
Page 2 of 4
ChlorineDio_Other_Low_AMA_Eng_Ody.fm
Interferences
5. Add 1.0 mL of
Chlorine Dioxide
Reagent A into a second
25-mL volumetric flask.
Note: Use a volumetric pipet
and pipet filler or a TenSette
Pipet to add this reagent.
6. Fill the second
volumetric flask to the
mark with the sample.
Stopper. Invert several
times to mix.
7. Touch the timer icon.
Touch
OK. A 1-minute
reaction period will
begin.
8. Pour 10 mL from the
second volumetric flask
into a second sample cell.
(This is the sample.)
9. Wipe the blank and
place it into the cell
holder.
10. Touch Zero.
The display will show:
0 µg/L ClO
2
11. When the timer
beeps, wipe the prepared
sample and place it into
the cell holder.
12. Touch Read.
Results will appear in
µg/L ClO
2
.
Note: The display will show
Underrange or Overrange,
respectively, if the value is
outside the range of the
method.
Interfering Substance Interference Levels and Treatments
ClO
–
Greater than 2.0mg/L
ClO
2
–
Greater than 2.0 mg/L
ClO
3
–
Greater than 2.0 mg/L
CrO
4
2–
Greater than 0.2 mg/L
Fe
3+
Greater than 0.5 mg/L
Hardness Greater than 1000 mg/L
Ozone Greater than 0.5 mg/L
Turbidity Greater than 1000 NTU
10 mL
10 mL
20 mL
25 mL
Zero
10 mL
20 mL
25 mL
Read
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